diff --git a/crypto_kem/ntruhps2048509/clean/api.h b/crypto_kem/ntruhps2048509/clean/api.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/crypto_sort.c b/crypto_kem/ntruhps2048509/clean/crypto_sort.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/crypto_sort.h b/crypto_kem/ntruhps2048509/clean/crypto_sort.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/kem.c b/crypto_kem/ntruhps2048509/clean/kem.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/owcpa.c b/crypto_kem/ntruhps2048509/clean/owcpa.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/owcpa.h b/crypto_kem/ntruhps2048509/clean/owcpa.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/pack3.c b/crypto_kem/ntruhps2048509/clean/pack3.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/packq.c b/crypto_kem/ntruhps2048509/clean/packq.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/params.h b/crypto_kem/ntruhps2048509/clean/params.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/poly.c b/crypto_kem/ntruhps2048509/clean/poly.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/poly.h b/crypto_kem/ntruhps2048509/clean/poly.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/sample.c b/crypto_kem/ntruhps2048509/clean/sample.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/sample.h b/crypto_kem/ntruhps2048509/clean/sample.h
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/verify.c b/crypto_kem/ntruhps2048509/clean/verify.c
old mode 100755
new mode 100644
diff --git a/crypto_kem/ntruhps2048509/clean/verify.h b/crypto_kem/ntruhps2048509/clean/verify.h
old mode 100755
new mode 100644