diff --git a/src/etc/inc/system.inc b/src/etc/inc/system.inc
index 1b5791f77..df5a80175 100644
--- a/src/etc/inc/system.inc
+++ b/src/etc/inc/system.inc
@@ -152,7 +152,7 @@ function system_sysctl_get()
     }
 
     foreach ($sysctls as $key => &$value) {
-        if ($value != 'default') {
+        if ($value != 'default' && $value != '') {
             continue;
         }