1 files changed, 5 insertions, 0 deletions
diff --git a/plugins/ImageGraph/StaticGraph/Pie.php b/plugins/ImageGraph/StaticGraph/Pie.php
index 63d7bf0752..6bae617232 100644
--- a/plugins/ImageGraph/StaticGraph/Pie.php
+++ b/plugins/ImageGraph/StaticGraph/Pie.php
@@ -23,4 +23,9 @@ class Pie extends PieGraph
             $this->pieConfig
         );
     }
+
+    public function supportsComparison()
+    {
+        return false;
+    }
 }