diff -up mhash-0.9.9.9/src/hmac_test.c.nofree mhash-0.9.9.9/src/hmac_test.c
--- mhash-0.9.9.9/src/hmac_test.c.nofree	2019-07-29 14:44:55.856345469 -0400
+++ mhash-0.9.9.9/src/hmac_test.c	2019-07-29 14:45:11.466021935 -0400
@@ -72,7 +72,7 @@ int main()
 		return(MUTILS_INVALID_RESULT);
 	}
 
-	mutils_free(tmp);
+	/* mutils_free(tmp); */
 
 	/* Test No 2 */