diff --git a/common/lib/capa/capa/correctmap.py b/common/lib/capa/capa/correctmap.py
index e61f6f6a9c..bbe09a3c57 100644
--- a/common/lib/capa/capa/correctmap.py
+++ b/common/lib/capa/capa/correctmap.py
@@ -57,7 +57,7 @@ class CorrectMap(object):
         if correctness=="correct":
             statsd.increment("user.correct_answer")
         else:
-            statsd.increment("user.incorrect_answer)
+            statsd.increment("user.incorrect_answer")
 
     def __repr__(self):
         return repr(self.cmap)