diff --git a/ext/pcre/php_pcre.c b/ext/pcre/php_pcre.c
index 08f042bb9e4..14271d00a14 100644
--- a/ext/pcre/php_pcre.c
+++ b/ext/pcre/php_pcre.c
@@ -91,7 +91,9 @@ static void php_free_pcre_cache(zval *data) /* {{{ */
 	pcre_cache_entry *pce = (pcre_cache_entry *) Z_PTR_P(data);
 	if (!pce) return;
 	pefree(pce->re, 1);
-	if (pce->extra) pefree(pce->extra, 1);
+	if (pce->extra) {
+		pcre_free_study(pce->extra);
+	}
 #if HAVE_SETLOCALE
 	if ((void*)pce->tables) pefree((void*)pce->tables, 1);
 	pefree(pce->locale, 1);