diff --git a/docker/packager/packager b/docker/packager/packager
index e392db677f6..4ba03f7633e 100755
--- a/docker/packager/packager
+++ b/docker/packager/packager
@@ -241,18 +241,23 @@ def parse_env_variables(
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO, format="%(asctime)s %(message)s")
     parser = argparse.ArgumentParser(
-        description="ClickHouse building script using prebuilt Docker image"
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+        description="ClickHouse building script using prebuilt Docker image",
     )
     # 'performance' creates a combined .tgz with server
     # and configs to be used for performance test.
     parser.add_argument(
-        "--package-type", choices=["deb", "binary", "performance"], required=True
+        "--package-type",
+        choices=("deb", "binary", "performance"),
+        required=True,
+        help="a build type",
     )
     parser.add_argument(
         "--clickhouse-repo-path",
         default=os.path.join(
             os.path.dirname(os.path.abspath(__file__)), os.pardir, os.pardir
         ),
+        help="ClickHouse git repository",
     )
     parser.add_argument("--output-dir", required=True)
     parser.add_argument("--build-type", choices=("debug", ""), default="")
@@ -278,6 +283,7 @@ if __name__ == "__main__":
             "gcc-11",
         ),
         default="clang-13",
+        help="a compiler to use",
     )
     parser.add_argument(
         "--sanitizer",
@@ -286,19 +292,25 @@ if __name__ == "__main__":
     )
     parser.add_argument("--split-binary", action="store_true")
     parser.add_argument("--clang-tidy", action="store_true")
-    parser.add_argument("--cache", choices=("", "ccache", "distcc"), default="")
-    parser.add_argument("--ccache_dir", default=os.getenv("HOME", "") + "/.ccache")
+    parser.add_argument("--cache", choices=("ccache", "distcc", ""), default="")
+    parser.add_argument(
+        "--ccache_dir",
+        default=os.getenv("HOME", "") + "/.ccache",
+        help="a directory with ccache",
+    )
     parser.add_argument("--distcc-hosts", nargs="+")
     parser.add_argument("--force-build-image", action="store_true")
     parser.add_argument("--version")
-    parser.add_argument("--author", default="clickhouse")
+    parser.add_argument("--author", default="clickhouse", help="a package author")
     parser.add_argument("--official", action="store_true")
     parser.add_argument("--alien-pkgs", nargs="+", default=[])
     parser.add_argument("--with-coverage", action="store_true")
     parser.add_argument(
         "--with-binaries", choices=("programs", "tests", ""), default=""
     )
-    parser.add_argument("--docker-image-version", default="latest")
+    parser.add_argument(
+        "--docker-image-version", default="latest", help="docker image tag to use"
+    )
 
     args = parser.parse_args()
     if not os.path.isabs(args.output_dir):