diff --git a/common/lib/capa/capa/responsetypes.py b/common/lib/capa/capa/responsetypes.py
index 6a9ac98171..31fb7b0f0f 100644
--- a/common/lib/capa/capa/responsetypes.py
+++ b/common/lib/capa/capa/responsetypes.py
@@ -2066,7 +2066,7 @@ class OpenEndedResponse(LoncapaResponse):
 
         score_ratio=int(score_result['score'])/self.max_score
 
-        correct=FALSE
+        correct=False
         if score_ratio>=.66:
             correct=True