diff --git a/Basalt/objects/Program.lua b/Basalt/objects/Program.lua
index b20913d..76f4594 100644
--- a/Basalt/objects/Program.lua
+++ b/Basalt/objects/Program.lua
@@ -708,6 +708,9 @@ return function(name, parent)
         
         customEventHandler = function(self, event, ...)
             base.customEventHandler(self, event, ...)
+            if (curProcess == nil) then
+                return
+            end
             if(event=="basalt_resize")then
                 local w, h = pWindow.getSize()
                 local pW, pH = self:getSize()