diff --git a/src/sync.js b/src/sync.js
index 6c601bfcbbbed99e560bcdbf375ec8d3ba4f19f9..a11e0b412c2554be54dda009abcc96ed9b217306 100644
--- a/src/sync.js
+++ b/src/sync.js
@@ -1111,7 +1111,7 @@ SyncApi.prototype._pokeKeepAlive = function() {
 };
 
 /**
- * @param {Object} obj Groups section object, eg. response.groups.invite
+ * @param {Object} groupsSection Groups section object, eg. response.groups.invite
  * @param {string} sectionName Which section this is ('invite', 'join' or 'leave')
  */
 SyncApi.prototype._processGroupSyncEntry = function(groupsSection, sectionName) {