diff --git a/tests/functional/flakes/flake-in-submodule.sh b/tests/functional/flakes/flake-in-submodule.sh
index f98c19aa8..fc732a7e2 100755
--- a/tests/functional/flakes/flake-in-submodule.sh
+++ b/tests/functional/flakes/flake-in-submodule.sh
@@ -74,7 +74,7 @@ EOF
 git -C "$rootRepo" add flake.nix
 git -C "$rootRepo" commit -m "Add flake.nix"
 
-storePath=$(nix flake metadata --json "$rootRepo?submodules=1" | jq -r .path)
+storePath=$(nix flake prefetch --json "$rootRepo?submodules=1" | jq -r .storePath)
 [[ -e "$storePath/submodule" ]]
 
 # The root repo may use the submodule repo as an input