diff --git a/msvc_build_libraries.py b/msvc_build_libraries.py
index f7c45e51e..f7bd6a53e 100755
--- a/msvc_build_libraries.py
+++ b/msvc_build_libraries.py
@@ -68,7 +68,7 @@ ap = argparse.ArgumentParser()
 ap.add_argument("--show-versions", const=True, action="store_const", help="Show available MSVC and Windows SDK versions")
 ap.add_argument("--accept-license", const=True, action="store_const", help="Automatically accept license")
 ap.add_argument("--msvc-version", help="Get specific MSVC version")
-ap.add_argument("--sdk_path-version", help="Get specific Windows SDK version")
+ap.add_argument("--sdk-version", help="Get specific Windows SDK version")
 args = ap.parse_args()