diff --git a/lib/challenge/preact/preact.go b/lib/challenge/preact/preact.go
index 43ebe79b..a01ba2e3 100644
--- a/lib/challenge/preact/preact.go
+++ b/lib/challenge/preact/preact.go
@@ -60,7 +60,7 @@ func (i *impl) Validate(r *http.Request, lg *slog.Logger, in *challenge.Validate
 	wantTime := in.Challenge.IssuedAt.Add(time.Duration(in.Rule.Challenge.Difficulty) * 95 * time.Millisecond)
 
 	if time.Now().Before(wantTime) {
-		return challenge.NewError("validate", "insufficent time", fmt.Errorf("%s: wanted user to wait until at least %s", wantTime.Format(time.RFC3339)))
+		return challenge.NewError("validate", "insufficent time", fmt.Errorf("%w: wanted user to wait until at least %s", challenge.ErrFailed, wantTime.Format(time.RFC3339)))
 	}
 
 	got := r.FormValue("result")
diff --git a/test/git-clone/test.sh b/test/git-clone/test.sh
index 4e05574f..94ad6638 100755
--- a/test/git-clone/test.sh
+++ b/test/git-clone/test.sh
@@ -9,6 +9,8 @@ set -u
 
 (
   cd ../.. && \
+  npm ci && \
+  npm run assets \
   ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
 )
 
diff --git a/test/git-push/test.sh b/test/git-push/test.sh
index 132666bf..35ed9fe3 100755
--- a/test/git-push/test.sh
+++ b/test/git-push/test.sh
@@ -9,6 +9,8 @@ set -u
 
 (
   cd ../.. && \
+  npm ci && \
+  npm run assets \
   ko build --platform=all --base-import-paths --tags="latest" --image-user=1000 --image-annotation="" --image-label="" ./cmd/anubis -L
 )