diff --git a/helpers/make-lighttpd b/helpers/make-lighttpd
index 9613be50533138ab2ce140cb9c937d58af1dc05f..36b222e59ec640fdcf0f288f92d40a25374229a0 100644
--- a/helpers/make-lighttpd
+++ b/helpers/make-lighttpd
@@ -19,10 +19,11 @@ VERSION=1
 
 . ./config
 
-sed -e 's~Ubuntu\sBug\sTracking\sSystem~upstream bug tracker~g' \
-    -e 's~Ubuntu~Trisquel GNU/Linux~g'                          \
-    -e 's~packages\.ubuntu\.com~packages.trisquel.info~g'       \
-    -i debian/index.html
+HTML_FILE=debian/index.html
+
+sed -i 's~Ubuntu\sBug\sTracking\sSystem~upstream bug tracker~g' $HTML_FILE
+sed -i 's~Ubuntu~Trisquel GNU/Linux~g'                          $HTML_FILE
+sed -i 's~packages\.ubuntu\.com~packages.trisquel.info~g'       $HTML_FILE
 
 changelog "Fix Ubuntu references in the default index.html"