diff --git a/libasn1compiler/asn1c_C.c b/libasn1compiler/asn1c_C.c
index 82d67ef..4d7a214 100644
--- a/libasn1compiler/asn1c_C.c
+++ b/libasn1compiler/asn1c_C.c
@@ -1356,7 +1356,7 @@
 			// OUT("td->check_constraints "
 			//	"= asn_DEF_%s.check_constraints;\n",
 			//	asn1c_type_name(arg, expr, TNF_SAFE));
-			OUT("return td->op->check_constraints"
+			OUT("return td->check_constraints"
 				"(td, sptr, ctfailcb, app_key);\n");
 		}
 		INDENT(-1);
diff --git a/libasn1compiler/asn1c_constraint.c b/libasn1compiler/asn1c_constraint.c
index bd6087e..75b1b8f 100644
--- a/libasn1compiler/asn1c_constraint.c
+++ b/libasn1compiler/asn1c_constraint.c
@@ -211,7 +211,7 @@
 		case ASN_CONSTR_SEQUENCE_OF:
 		case ASN_CONSTR_SET_OF:
 			OUT("/* Perform validation of the inner elements */\n");
-			OUT("return td->op->check_constraints(td, sptr, ctfailcb, app_key);\n");
+			OUT("return td->check_constraints(td, sptr, ctfailcb, app_key);\n");
 			break;
 		default:
 			OUT("/* Constraint check succeeded */\n");