diff --git a/media/common_time/cc_helper.cpp b/media/common_time/cc_helper.cpp
index 8d8556c..6a7de74 100644
--- a/media/common_time/cc_helper.cpp
+++ b/media/common_time/cc_helper.cpp
@@ -80,7 +80,7 @@
     }
 }
 
-void CCHelper::CommonClockListener::onTimelineChanged(uint64_t timelineID) {
+void CCHelper::CommonClockListener::onTimelineChanged(uint64_t /*timelineID*/) {
     // do nothing; listener is only really used as a token so the server can
     // find out when clients die.
 }