diff --git a/Documentation/ApplyingCorePatches/Index.rst b/Documentation/ApplyingCorePatches/Index.rst
index 81f49bd9..6baa55b1 100644
--- a/Documentation/ApplyingCorePatches/Index.rst
+++ b/Documentation/ApplyingCorePatches/Index.rst
@@ -57,6 +57,7 @@ add one.
      "typo3/cms": {
        "web-dir": "public"
      },
+     "composer-exit-on-patch-failure": true,
      "patches": {
        "typo3/cms-core": {
          "Bug #98106 fix something":"patches/Bug-98106.diff"
@@ -64,6 +65,10 @@ add one.
      }
    }
 
+.. note::
+   Use :bash:`composer-exit-on-patch-failure` to exit the running process on patch failures.
+   Otherwise, you may not notice the error.
+
 The patch itself looks like this:
 
 .. code-block:: diff