diff --git a/public/vendor/flot/jquery.flot.pie.js b/public/vendor/flot/jquery.flot.pie.js
index 6553c8ea3a8..dee47e6e504 100644
--- a/public/vendor/flot/jquery.flot.pie.js
+++ b/public/vendor/flot/jquery.flot.pie.js
@@ -73,6 +73,7 @@ More detail and specific examples can be found in the included HTML file.
 			centerLeft = null,
 			centerTop = null,
 			processed = false,
+			options = null,
 			ctx = null;
 
 		// interactive variables