diff --git a/.forgejo/workflows/nix-flake-check.sh b/.forgejo/workflows/nix-flake-check.sh
index 4894bde6..e01d7d4d 100755
--- a/.forgejo/workflows/nix-flake-check.sh
+++ b/.forgejo/workflows/nix-flake-check.sh
@@ -49,7 +49,7 @@ EOF
     done
 } >| "$output"
 
-target=$(basename "$0" .sh).yml
+target=$(basename "$0" .sh).yaml
 
 if [ $# -eq 1 ] && [ "$1" = "check" ]; then
     if ! diff_output=$(diff --color=always "$target" "$output"); then