diff --git a/.github/changelog-processor.py b/.github/changelog-processor.py
index a196fdbfbc..1bd307bbe5 100755
--- a/.github/changelog-processor.py
+++ b/.github/changelog-processor.py
@@ -8,7 +8,9 @@
 parser.add_argument(
     "changelog",
     metavar="CHANGELOG",
-    help="Path to the CHANGELOG.md file"
+    help="Path to the CHANGELOG.md file",
+    default="CHANGELOG.md",
+    nargs='?'
 )
 parser.add_argument(
     "--print-latest-version",