diff --git a/main.py b/main.py
index 14c8ae3..115cff4 100644
--- a/main.py
+++ b/main.py
@@ -600,7 +600,12 @@ async def fast_get_pump_schema(network: str) -> dict[str, dict[str, Any]]:
 
 @app.post("/addpump/")
 async def fastapi_add_pump(network: str, pump: str, node1: str, node2: str) -> ChangeSet:
-    return add_pump(network, pump, node1, node2)
+    props: dict[str, any] = {
+        'id' : pump,
+        'node1' : node1,
+        'node2' : node2
+    }
+    return add_pump(network, ChangeSet(props))
 
 @app.post("/deletepump/")
 async def fastapi_delete_pump(network: str, pump: str) -> ChangeSet: