diff --git a/web/delete_flow.py b/web/delete_flow.py
index f6f3d39..412d02f 100755
--- a/web/delete_flow.py
+++ b/web/delete_flow.py
@@ -59,4 +59,5 @@
     exit(1)
 
   # Do the work
-  delete_flow_path(sys.argv[1]);
+  flow_id_arg = int(sys.argv[1], 0)
+  delete_flow_path(flow_id_arg);