diff --git a/ext/intl/idn/idn.c b/ext/intl/idn/idn.c
index 1ab1f3f5527..bd87afcd711 100644
--- a/ext/intl/idn/idn.c
+++ b/ext/intl/idn/idn.c
@@ -144,7 +144,6 @@ static void php_intl_idn_to_46(INTERNAL_FUNCTION_PARAMETERS,
 
 	uts46 = uidna_openUTS46(option, &status);
 	if (php_intl_idn_check_status(status, "failed to open UIDNA instance") == FAILURE) {
-		zend_string_efree(buffer);
 		RETURN_FALSE;
 	}