diff --git a/webui/model/health/health.php b/webui/model/health/health.php
index 89ee182f..29196467 100644
--- a/webui/model/health/health.php
+++ b/webui/model/health/health.php
@@ -218,7 +218,7 @@ public function diskinfo() {
       $shortinfo = array();
       $a = array();
 
-      $s = exec("df", $output);
+      $s = exec("df -a", $output);
 
       $partitions = Registry::get('partitions_to_monitor');