diff --git a/main.py b/main.py
index cf280be..a6207d9 100644
--- a/main.py
+++ b/main.py
@@ -311,8 +311,8 @@ def fastapi_set_tank_coord(name: str, tank: str, x: float, y: float) -> ChangeSe
 ############################################################
 
 @app.post("/addpipe/")
-def fastapi_add_pipe(name: str, pipe: str, node1: str, node2: str, length: float = 0, diameter: float = 0, roughness: float = 0, minor_loss: float = 0, status: str = PIPE_STATUS_OPEN) -> ChangeSet:
-    return add_pipe(name, pipe, node1, node2, length, diameter, roughness, minor_loss, status)
+def fastapi_add_pipe(name: str, pipe: str, node1: str, node2: str, length: float = 0, diameter: float = 0, roughness: float = 0, minorloss: float = 0, status: str = PIPE_STATUS_OPEN) -> ChangeSet:
+    return add_pipe(name, pipe, node1, node2, length, diameter, roughness, minorloss, status)
 
 @app.post("/deletepipe/")
 def fastapi_delete_pipe(name: str, pipe: str) -> ChangeSet: