diff --git a/Makefile b/Makefile
index 4ffca01bb..0b6c5a40e 100644
--- a/Makefile
+++ b/Makefile
@@ -120,7 +120,7 @@ SRCMANAGERDIR=lemonldap-ng-manager
 
 VERSION=`head -n1 changelog |sed -e 's/lemonldap-ng (//' -e 's/).*$$//'`
 PORTALSKINS=`ls $(SRCPORTALDIR)/example/skins/`
-DIFF=diff -aurN -x '*.bak' -x .svn -x '*.map' -x '*.min.js' -x '*.min.css' -x '*.swp' --ignore-matching-lines='.*jquery.*' --ignore-matching-lines='.*lemonldap-ng\.ini.*'
+DIFF=diff -aurN -x '*.tpl' -x '*.bak' -x .svn -x '*.map' -x '*.min.js' -x '*.min.css' -x '*.swp' --ignore-matching-lines='.*jquery.*' --ignore-matching-lines='.*lemonldap-ng\.ini.*'
 DIFFPREFIX=