--- a/compiler/PPCSequenceNode.st	Sun May 10 06:28:36 2015 +0100
+++ b/compiler/PPCSequenceNode.st	Tue May 12 01:24:03 2015 +0100
@@ -67,7 +67,7 @@
         child recognizedSentences do: [ :suffix |
             retval do: [ :prefix |
                 set add: prefix, suffix.
-         	]
+         		]
         ].
         retval := set.
     ].