eliminate warning

diff --git a/asn1c/tests/check-62.c b/asn1c/tests/check-62.c
index 0694df8..6c51468 100644
--- a/asn1c/tests/check-62.c
+++ b/asn1c/tests/check-62.c
@@ -128,6 +128,8 @@
 		assert(buf_offset == size);
 		assert(memcmp(buf, fbuf, buf_offset) == 0);
 		break;
+	case EXP_OK:
+		break;
 	}
 
 	asn_DEF_T.free_struct(&asn_DEF_T, st, 0);