diff --git a/.github/workflows/wled-ci.yml b/.github/workflows/wled-ci.yml
index 4a18aa74..5aae1fd8 100644
--- a/.github/workflows/wled-ci.yml
+++ b/.github/workflows/wled-ci.yml
@@ -50,7 +50,7 @@ jobs:
       uses: actions/cache@v3
       with:
         path: ~/.platformio
-        key: ${{ runner.os }}-${{ hashFiles('platform.ini') }}
+        key: ${{ runner.os }}-${{ hashFiles('platformio.ini') }}
     - name: Set up Python
       uses: actions/setup-python@v4
       with: