diff --git a/main/main.c b/main/main.c
index 7178c3fc1ac..77d9d78e344 100644
--- a/main/main.c
+++ b/main/main.c
@@ -902,6 +902,7 @@ int php_module_startup(sapi_module_struct *sf)
 	zuf.block_interruptions = BLOCK_INTERRUPTIONS;
 	zuf.unblock_interruptions = UNBLOCK_INTERRUPTIONS;
 	zuf.get_ini_entry = php_get_ini_entry_for_zend;
+	zuf.ticks_function = NULL;
 	zend_startup(&zuf, NULL);
 
 #ifdef ZTS