diff --git a/debian/upstream-file-count-check.sh b/debian/upstream-file-count-check.sh
index 1c68bbc1e6..11c444f34a 100644
--- a/debian/upstream-file-count-check.sh
+++ b/debian/upstream-file-count-check.sh
@@ -1,6 +1,8 @@
+  LC_ALL=C.UTF-8 ls -1a |grep -vx .git |grep -vx .pc > debian/upstream-file-list.new
+if ! diff -u debian/upstream-file-list debian/upstream-file-list.new
+then
   echo "Upstream added or removed files"
   echo "Update 'debian/gitlab.install' and/or 'debian/ignored-file-list'"
-  ls -1a |grep -vx .git |grep -vx .pc > debian/upstream-file-list.new
   echo "\nNewly added files are:"
   echo "---------------------"
   comm -23 debian/upstream-file-list.new debian/upstream-file-list
@@ -11,3 +13,4 @@
   echo "---------------------"
   echo "\nAfter updating, rename 'debian/upstream-file-list.new' as 'debian/upstream-file-list'\n"
   exit 1
+fi