diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e7d556b..cc1e67ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -92,8 +92,8 @@ jobs:
     # ----------------
     - name: cabal check
       run: |
-        cd vector
-        cabal -vnormal check
+        (cd vector-stream && cabal -vnormal check)
+        (cd vector        && cabal -vnormal check)
     # ----------------
     - name: Build
       run: |