diff --git a/ext/pcre/php_pcre.c b/ext/pcre/php_pcre.c
index 8c7bf18b558..89a55a866d8 100644
--- a/ext/pcre/php_pcre.c
+++ b/ext/pcre/php_pcre.c
@@ -60,7 +60,7 @@ static void php_free_pcre_cache(void *data)
 	pcre_cache_entry *pce = (pcre_cache_entry *) data;
 	pefree(pce->re, 1);
 #if HAVE_SETLOCALE
-	pefree((void*)pce->tables, 1);
+	if ((void*)pce->tables) pefree((void*)pce->tables, 1);
 #endif
 }