diff --git a/mozilla/calendar/sunbird/base/Makefile.in b/mozilla/calendar/sunbird/base/Makefile.in
index 15e6952aafd..e98bae8bf15 100644
--- a/mozilla/calendar/sunbird/base/Makefile.in
+++ b/mozilla/calendar/sunbird/base/Makefile.in
@@ -42,6 +42,9 @@ VPATH   = @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
+APP_VERSION = $(shell cat $(srcdir)/../config/version.txt)
+DEFINES += -DAPP_VERSION="$(APP_VERSION)"
+
 include $(topsrcdir)/config/config.mk
 
 include $(topsrcdir)/config/rules.mk
diff --git a/mozilla/calendar/sunbird/base/content/aboutDialog.xul b/mozilla/calendar/sunbird/base/content/aboutDialog.xul
index b513cc1fa1a..5b2fb4ca9b0 100644
--- a/mozilla/calendar/sunbird/base/content/aboutDialog.xul
+++ b/mozilla/calendar/sunbird/base/content/aboutDialog.xul
@@ -69,7 +69,7 @@
 
   <deck id="modes" flex="1">
     <vbox flex="1" id="clientBox">
-#expand <label id="version" value="&aboutVersion; &version; __APP_VERSION__"/>
+#expand <label id="version" value="&aboutVersion; __APP_VERSION__"/>
       <description id="copyright">&copyrightText;</description>
       <vbox id="detailsBox" align="center" flex="1">
         <spacer flex="1"/>