diff --git a/protos/fuelgauge_log.proto b/protos/fuelgauge_log.proto
index 4bee75c..b16958d 100644
--- a/protos/fuelgauge_log.proto
+++ b/protos/fuelgauge_log.proto
@@ -45,6 +45,7 @@
     FETCH_USAGE_DATA = 4;
     INSERT_USAGE_DATA = 5;
     TIME_UPDATED = 6;
+    TIMEZONE_UPDATED = 7;
   }
 
   optional int64 timestamp = 1;