diff -r ed2e2afb9573 -r 8c98bad90b8d graphics/FBD_Objects.py
--- a/graphics/FBD_Objects.py	Thu Aug 17 10:08:23 2017 +0300
+++ b/graphics/FBD_Objects.py	Thu Aug 17 10:12:04 2017 +0300
@@ -263,7 +263,7 @@
                 self.Description = None
             if self.ExecutionControl:
                 inputs.insert(0,  ("EN",   "BOOL", "none"))
-                outputs.insert(0, ("ENO" , "BOOL", "none"))
+                outputs.insert(0, ("ENO",  "BOOL", "none"))
             self.Pen = MiterPen(self.Colour)
 
             # Extract the inputs properties and create or modify the corresponding connector