1 files changed, 1 insertions, 1 deletions
diff --git a/ext/gmp/gmp.c b/ext/gmp/gmp.c
index b3cc77e750..93c69d3347 100644
--- a/ext/gmp/gmp.c
+++ b/ext/gmp/gmp.c
@@ -577,7 +577,7 @@ static int gmp_serialize(zval *object, unsigned char **buffer, size_t *buf_len,
 
 	gmp_strval(&zv, gmpnum, 10);
 	php_var_serialize(&buf, &zv, &serialize_data);
-	zval_dtor(&zv);
+	zval_ptr_dtor_str(&zv);
 
 	ZVAL_ARR(&zv, zend_std_get_properties(object));
 	php_var_serialize(&buf, &zv, &serialize_data);