diff --git a/tests/modules/testrdb.c b/tests/modules/testrdb.c
index 7c04bb4ef..3150b88e4 100644
--- a/tests/modules/testrdb.c
+++ b/tests/modules/testrdb.c
@@ -20,7 +20,8 @@ void *testrdb_type_load(RedisModuleIO *rdb, int encver) {
     long double ld = RedisModule_LoadLongDouble(rdb);
     if (RedisModule_IsIOError(rdb)) {
         RedisModuleCtx *ctx = RedisModule_GetContextFromIO(rdb);
-        RedisModule_FreeString(ctx, str);
+        if (str)
+            RedisModule_FreeString(ctx, str);
         return NULL;
     }
     /* Using the values only after checking for io errors. */