diff --git a/etc/inc/config.lib.inc b/etc/inc/config.lib.inc
index 311bf65e80..222d9d818e 100644
--- a/etc/inc/config.lib.inc
+++ b/etc/inc/config.lib.inc
@@ -196,7 +196,7 @@ function generate_config_cache($config) {
 		$configcacheextra = fopen($g['tmp_path'] . '/config.extra.cache', "w");
 		fwrite($configcacheextra, serialize($config_extra));
 		fclose($configcacheextra);
-		pfSense_fsync($configcacheextra);
+		pfSense_fsync("{$g['tmp_path']}/config.extra.cache");
 		unset($configcacheextra);
 	}
 }