diff --git a/tests/tests-c-compiler/check-src/check-148.c b/tests/tests-c-compiler/check-src/check-148.c
index f19a110..94afdcd 100644
--- a/tests/tests-c-compiler/check-src/check-148.c
+++ b/tests/tests-c-compiler/check-src/check-148.c
@@ -139,6 +139,8 @@
   buf2_pos = 0;
   erval = der_encode(&asn_DEF_DefaultSequence, tp, buf2_fill, 0);
   compare_encoding(&erval, expected, expected_size, buf2);
+
+  ASN_STRUCT_RESET(asn_DEF_DefaultSequence, tp);
 }
 
 static void
@@ -160,6 +162,7 @@
   buf2_pos = 0;
   erval = der_encode(&asn_DEF_DefaultSet, tp, buf2_fill, 0);
   compare_encoding(&erval, expected, expected_size, buf2);
+  ASN_STRUCT_RESET(asn_DEF_DefaultSet, tp);
 }
 
 int