diff --git a/langtools/.hgtags b/langtools/.hgtags
index ac09b3b2d54..2a016b7d131 100644
--- a/langtools/.hgtags
+++ b/langtools/.hgtags
@@ -52,3 +52,4 @@ ce9bcdcb7859bb7ef10afd078ad59ba7847f208d jdk7-b69
 2485f5641ed0829205aaaeb31ad711c2c2ef0de3 jdk7-b75
 8fb9b4be3cb1574302acde90549a4d333ef51e93 jdk7-b76
 0398ae15b90ac76d87ee21844453e95ff8613e43 jdk7-b77
+acc1e40a5874ebf32bebcb6ada565b3b40b7461c jdk7-b78