diff --git a/crypto/asn1/tasn_utl.c b/crypto/asn1/tasn_utl.c
index 960cdbb7..55037a18 100644
--- a/crypto/asn1/tasn_utl.c
+++ b/crypto/asn1/tasn_utl.c
@@ -222,7 +222,7 @@ const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,
   sfld = offset2ptr(*pval, adb->offset);
 
   /* Check if NULL */
-  if (!sfld) {
+  if (*sfld == NULL) {
     if (!adb->null_tt) {
       goto err;
     }