diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d742a39..92386cb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,8 @@ jobs:
       with:
         python-version: '3.7'
         architecture: 'x64'
-    - uses: actions/cache@v2
+    - name: Setup pip cache
+      uses: actions/cache@v2
       with:
         path: ~/.cache/pip
         key: pip-3.7-${{ hashFiles('package.json') }}
@@ -32,7 +33,8 @@ jobs:
     - name: Get yarn cache directory path
       id: yarn-cache-dir-path
       run: echo "::set-output name=dir::$(yarn cache dir)"
-    - uses: actions/cache@v2
+    - name: Setup yarn cache
+      uses: actions/cache@v2
       id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
       with:
         path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
diff --git a/src/utils.ts b/src/utils.ts
index 6631627..58455ea 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -16,7 +16,7 @@ export function addJSONTour(
   try {
     tutorial = manager.createTutorial(id, label, hasHelpEntry);
     steps.forEach(({ content, placement, target, title }) => {
-      tutorial?.createAndAddStep(target, content, placement, title);
+      tutorial.createAndAddStep(target, content, placement, title);
     });
   } catch (error) {
     console.error(`Fail to add tour '${label}' (${id})`, error);