diff --git a/files-with-type b/files-with-type
index d969f4405..0c7dcbb09 100755
--- a/files-with-type
+++ b/files-with-type
@@ -10,4 +10,4 @@
 mime_type=$1
 shift
 
-find  "$@" -print0 -type f |xargs -0 file --mime-type | grep "${mime_type}" | sed -e 's/:.*$//'
+git ls-files | grep -vE '^vendor/' | xargs file --mime-type | grep "${mime_type}" | sed -e 's/:.*$//'