diff --git a/README.md b/README.md
index d4cbd1d..a75cb73 100644
--- a/README.md
+++ b/README.md
@@ -151,7 +151,9 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v2
         with:
-          fetch-depth: 0 # This is needed if you set `only-changed-files` to true
+          # 0 fetch-depth is needed if you set `only-changed-files` to true
+          # and if you are configuring this check to run on push events
+          fetch-depth: 0
 
       - name: Produce the presidio report
         uses: insightsengineering/presidio-action@v1
diff --git a/action.yaml b/action.yaml
index de7dd27..b147f67 100644
--- a/action.yaml
+++ b/action.yaml
@@ -71,6 +71,7 @@ runs:
 
     - name: Get changed files
       id: changed-files
+      if: contains(inputs.only-changed-files, 'true')
       uses: tj-actions/changed-files@v17
 
     - name: Install en language models