diff -r 3d7fa2257b24 -r 85ca4fa0720b PLCControler.py
--- a/PLCControler.py	Tue Sep 10 10:35:18 2013 +0200
+++ b/PLCControler.py	Tue Sep 10 10:36:44 2013 +0200
@@ -2376,7 +2376,7 @@
                     if words[0] == "T" and varname == words[2]:
                         return "BOOL"
                     if words[1] == varname:
-                        return self.GetPouInterfaceReturnType(pou)
+                        return self.GetPouInterfaceReturnType(pou)[0]
                     for type, varlist in pou.getvars():
                         for var in varlist.getvariable():
                             if var.getname() == varname: