diff --git a/.hgtags b/.hgtags
index e7d2b61116..d94649f10d 100644
--- a/.hgtags
+++ b/.hgtags
@@ -123,3 +123,4 @@ a7bd9a33067b3537351276e0178a045748ad046a go1.1.1
 45475ec7eab1c588fc4210b34d5901b15ca1e479 go1.2rc2
 7422495a6bf9d5e84828ee466406293be84f565a go1.2rc3
 94af58f9fd71feda5c316d791ed11aaf015f9e82 go1.2rc4
+b3d5a20b070a92da2458c5788694d1359b353f4a go1.2rc5