diff --git a/CHANGELOG.md b/CHANGELOG.md
index e43f3dd..fe41040 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
  * Added votes_per_uploaded_choice call to API
  * Added median_responses_per_session call to API
- * Added upload_to_participation_ratio call to API
+ * Added upload_to_participation_rate call to API
  * Added vote_rate call to API
 
 ## Pairwise 3.0.0 (Feb 10, 2012) ###
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libgit2 0.21.2