diff --git a/Moose Development/Moose/Core/Zone.lua b/Moose Development/Moose/Core/Zone.lua
index 2d2ccaecb..a6c975b79 100644
--- a/Moose Development/Moose/Core/Zone.lua	
+++ b/Moose Development/Moose/Core/Zone.lua	
@@ -190,6 +190,7 @@ end
 -- @param Core.Point#COORDINATE Coordinate The coordinate to test.
 -- @return #boolean true if the coordinate is within the zone.
 function ZONE_BASE:IsCoordinateInZone( Coordinate )
+  if not Coordinate then return false end
   local InZone = self:IsVec2InZone( Coordinate:GetVec2() )
   return InZone
 end