diff --git a/library/Icinga/Data/Filter/FilterExpression.php b/library/Icinga/Data/Filter/FilterExpression.php
index 73fb62536c..6a9a880955 100644
--- a/library/Icinga/Data/Filter/FilterExpression.php
+++ b/library/Icinga/Data/Filter/FilterExpression.php
@@ -173,6 +173,10 @@ public function matches($row)
             return false;
         }
 
+        if (trim($this->expression) === '*') {
+            return $rowValue !== null;
+        }
+
         if ($this->caseSensitive) {
             $expression = $this->expression;
         } else {