diff --git a/github/github_purge_camo_cache.sh b/github/github_purge_camo_cache.sh
index fcab802c..5cf9f87d 100755
--- a/github/github_purge_camo_cache.sh
+++ b/github/github_purge_camo_cache.sh
@@ -50,7 +50,7 @@ else
 fi
 
 if ! is_github_owner_repo "$owner_repo"; then
-	usage "Invalid owner/repo given: $owner_repo"
+    usage "Invalid owner/repo given: $owner_repo"
 fi
 
 url="https://github.com/$owner_repo"