diff --git a/.github/workflows/mix-format.yml b/.github/workflows/mix-format.yml
index 8d168ada..ab42a3f5 100644
--- a/.github/workflows/mix-format.yml
+++ b/.github/workflows/mix-format.yml
@@ -11,6 +11,9 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        working-directory: ./tololo
 
     steps:
       - uses: actions/checkout@v4
@@ -49,6 +52,6 @@ jobs:
             ${{ runner.os }}-mix-
 
       - name: Run `mix format`
-        working-directory: ./tololo
+        run: devenv shell
         run: devenv tasks run mix:format
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 27e04b0f..5e6d8569 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -48,4 +48,5 @@ jobs:
             ${{ runner.os }}-mix-
 
       - name: Build the devenv shell and run tests
+        working-directory: ./tololo
         run: devenv test