Index: graphspell/spellchecker.py
==================================================================
--- graphspell/spellchecker.py
+++ graphspell/spellchecker.py
@@ -130,11 +130,11 @@
     def readableMorph (self, sMorph):
         if not self.lexicographer:
             return ""
         return self.lexicographer.readableMorph(sMorph)
 
-    def setLabelsOnToken (dToken):
+    def setLabelsOnToken (self, dToken):
         if not self.lexicographer:
             return
         self.lexicographer.setLabelsOnToken(dToken)