diff --git a/modules/nltk_contrib/fuf/statemachine.py b/modules/nltk_contrib/fuf/statemachine.py
index 957d4e1..93740da 100755
--- a/modules/nltk_contrib/fuf/statemachine.py
+++ b/modules/nltk_contrib/fuf/statemachine.py
@@ -47,7 +47,7 @@ def run(self, tokens=None):
                 new_node(tokens)
                 break 
             elif new_node not in self.nodes:
-                raise RuntimeErrror, "Invalid target %s", new_state
+                raise RuntimeError("Invalid target %s", new_state)
             else:
                 node = new_node