diff --git a/dap/accumulator.py b/dap/accumulator.py
index d4e26ba..bd5a0fd 100644
--- a/dap/accumulator.py
+++ b/dap/accumulator.py
@@ -11,7 +11,7 @@ def main():
     parser = argparse.ArgumentParser()
 
     parser.add_argument("--accumulator_host", default="localhost")
-    parser.add_argument("--accumulator_port", default=13002, type=int)
+    parser.add_argument("--accumulator_port", type=int, default=13002)
 
     clargs = parser.parse_args()