diff --git a/sql/handler.cc b/sql/handler.cc
index 40b85a0901c..0de772e366b 100644
--- a/sql/handler.cc
+++ b/sql/handler.cc
@@ -2350,8 +2350,8 @@ int ha_init_key_cache(const char *name, KEY_CACHE *key_cache)
   if (!key_cache->key_cache_inited)
   {
     pthread_mutex_lock(&LOCK_global_system_variables);
-    long tmp_buff_size= (long) key_cache->param_buff_size;
-    long tmp_block_size= (long) key_cache->param_block_size;
+    ulong tmp_buff_size= (ulong) key_cache->param_buff_size;
+    uint tmp_block_size= (uint) key_cache->param_block_size;
     uint division_limit= key_cache->param_division_limit;
     uint age_threshold=  key_cache->param_age_threshold;
     pthread_mutex_unlock(&LOCK_global_system_variables);