diff --git a/mozilla/client.mk b/mozilla/client.mk
index acbfe3827bb..f1b23242300 100644
--- a/mozilla/client.mk
+++ b/mozilla/client.mk
@@ -118,6 +118,7 @@ MODULES_core :=                                 \
   SeaMonkeyAll                                  \
   mozilla/browser/config/version.txt            \
   mozilla/mail/config/version.txt               \
+  mozilla/calendar/sunbird/config/version.txt   \
   mozilla/ipc/ipcd                              \
   mozilla/modules/libpr0n                       \
   mozilla/modules/libmar                        \