diff --git a/crypto_sign/rainbowIIIc-classic/clean/blas_comm.c b/crypto_sign/rainbowIIIc-classic/clean/blas_comm.c
index 5d5c5b36..6f7727b9 100644
--- a/crypto_sign/rainbowIIIc-classic/clean/blas_comm.c
+++ b/crypto_sign/rainbowIIIc-classic/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWIIICCLASSIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWIIICCLASSIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWIIICCLASSIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWIIICCLASSIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWIIICCLASSIC_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];
diff --git a/crypto_sign/rainbowIIIc-cyclic-compressed/clean/blas_comm.c b/crypto_sign/rainbowIIIc-cyclic-compressed/clean/blas_comm.c
index 7bb0b688..5701b090 100644
--- a/crypto_sign/rainbowIIIc-cyclic-compressed/clean/blas_comm.c
+++ b/crypto_sign/rainbowIIIc-cyclic-compressed/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWIIICCYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWIIICCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWIIICCYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWIIICCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWIIICCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];
diff --git a/crypto_sign/rainbowIIIc-cyclic/clean/blas_comm.c b/crypto_sign/rainbowIIIc-cyclic/clean/blas_comm.c
index 45ef8e66..4ad7a4b7 100644
--- a/crypto_sign/rainbowIIIc-cyclic/clean/blas_comm.c
+++ b/crypto_sign/rainbowIIIc-cyclic/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWIIICCYCLIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWIIICCYCLIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWIIICCYCLIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWIIICCYCLIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWIIICCYCLIC_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];
diff --git a/crypto_sign/rainbowIa-classic/clean/blas_comm.c b/crypto_sign/rainbowIa-classic/clean/blas_comm.c
index b9b38a4c..a58d87d1 100644
--- a/crypto_sign/rainbowIa-classic/clean/blas_comm.c
+++ b/crypto_sign/rainbowIa-classic/clean/blas_comm.c
@@ -74,7 +74,7 @@ static unsigned int gf16mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsigne
         uint8_t *ai = mat + n_w_byte * i;
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + n_w_byte * j;
-            PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf256v_predicated_add(ai + offset_byte, 1-PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
+            PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf256v_predicated_add(ai + offset_byte, 1^PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
         }
         uint8_t pivot = PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16v_get_ele(ai, i);
         r8 &= PQCLEAN_RAINBOWIACLASSIC_CLEAN_gf16_is_nonzero(pivot);
diff --git a/crypto_sign/rainbowIa-cyclic-compressed/clean/blas_comm.c b/crypto_sign/rainbowIa-cyclic-compressed/clean/blas_comm.c
index feebd56c..4c452af7 100644
--- a/crypto_sign/rainbowIa-cyclic-compressed/clean/blas_comm.c
+++ b/crypto_sign/rainbowIa-cyclic-compressed/clean/blas_comm.c
@@ -74,7 +74,7 @@ static unsigned int gf16mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsigne
         uint8_t *ai = mat + n_w_byte * i;
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + n_w_byte * j;
-            PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + offset_byte, 1-PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
+            PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + offset_byte, 1^PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
         }
         uint8_t pivot = PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16v_get_ele(ai, i);
         r8 &= PQCLEAN_RAINBOWIACYCLICCOMPRESSED_CLEAN_gf16_is_nonzero(pivot);
diff --git a/crypto_sign/rainbowIa-cyclic/clean/blas_comm.c b/crypto_sign/rainbowIa-cyclic/clean/blas_comm.c
index e79fa489..65fb6c33 100644
--- a/crypto_sign/rainbowIa-cyclic/clean/blas_comm.c
+++ b/crypto_sign/rainbowIa-cyclic/clean/blas_comm.c
@@ -74,7 +74,7 @@ static unsigned int gf16mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsigne
         uint8_t *ai = mat + n_w_byte * i;
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + n_w_byte * j;
-            PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf256v_predicated_add(ai + offset_byte, 1-PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
+            PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf256v_predicated_add(ai + offset_byte, 1^PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16_is_nonzero(PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16v_get_ele(ai, i)), aj + offset_byte, n_w_byte - offset_byte);
         }
         uint8_t pivot = PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16v_get_ele(ai, i);
         r8 &= PQCLEAN_RAINBOWIACYCLIC_CLEAN_gf16_is_nonzero(pivot);
diff --git a/crypto_sign/rainbowVc-classic/clean/blas_comm.c b/crypto_sign/rainbowVc-classic/clean/blas_comm.c
index e0ce9e4f..bfd6a6ea 100644
--- a/crypto_sign/rainbowVc-classic/clean/blas_comm.c
+++ b/crypto_sign/rainbowVc-classic/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWVCCLASSIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWVCCLASSIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWVCCLASSIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWVCCLASSIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWVCCLASSIC_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];
diff --git a/crypto_sign/rainbowVc-cyclic-compressed/clean/blas_comm.c b/crypto_sign/rainbowVc-cyclic-compressed/clean/blas_comm.c
index ae0afda3..8ec4a06a 100644
--- a/crypto_sign/rainbowVc-cyclic-compressed/clean/blas_comm.c
+++ b/crypto_sign/rainbowVc-cyclic-compressed/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWVCCYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWVCCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWVCCYCLICCOMPRESSED_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWVCCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWVCCYCLICCOMPRESSED_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];
diff --git a/crypto_sign/rainbowVc-cyclic/clean/blas_comm.c b/crypto_sign/rainbowVc-cyclic/clean/blas_comm.c
index bde4f8cb..a1f0a574 100644
--- a/crypto_sign/rainbowVc-cyclic/clean/blas_comm.c
+++ b/crypto_sign/rainbowVc-cyclic/clean/blas_comm.c
@@ -72,7 +72,7 @@ static unsigned int gf256mat_gauss_elim_ref(uint8_t *mat, unsigned int h, unsign
 
         for (unsigned int j = i + 1; j < h; j++) {
             uint8_t *aj = mat + w * j;
-            PQCLEAN_RAINBOWVCCYCLIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1-PQCLEAN_RAINBOWVCCYCLIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
+            PQCLEAN_RAINBOWVCCYCLIC_CLEAN_gf256v_predicated_add(ai + skip_len_align4, 1^PQCLEAN_RAINBOWVCCYCLIC_CLEAN_gf256_is_nonzero(ai[i]), aj + skip_len_align4, w - skip_len_align4);
         }
         r8 &= PQCLEAN_RAINBOWVCCYCLIC_CLEAN_gf256_is_nonzero(ai[i]);
         uint8_t pivot = ai[i];