--- a/PLCGenerator.py	Wed Aug 16 12:03:46 2017 +0300
+++ b/PLCGenerator.py	Wed Aug 16 12:21:05 2017 +0300
@@ -1393,7 +1393,7 @@
         jump_target = jump.gettargetName()
         if not pou.hasstep(jump_target):
             pname = pou.getname()
-            msg = _("SFC jump in pou \"{a1}\" refers to non-existent SFC step \"{a2}\"").format( a1=pname, a2=jump_target)
+            msg = _("SFC jump in pou \"{a1}\" refers to non-existent SFC step \"{a2}\"").format(a1=pname, a2=jump_target)
             raise PLCGenException, msg
         if jump.connectionPointIn is not None:
             instances = []