diff --git a/main.py b/main.py
index f231825..073df9a 100644
--- a/main.py
+++ b/main.py
@@ -203,7 +203,8 @@ async def fastapi_delete_reservoir(network: str, reservoir: str) -> ChangeSet:
 
 @app.get("/getreservoirhead/")
 async def fastapi_get_reservoir_head(network: str, reservoir: str) -> float | None:
-    return get_reservoir_head(network, reservoir)
+    ps = get_reservoir_properties(network, reservoir)
+    return ps['head']
 
 @app.get("/getreservoirpattern/")
 async def fastapi_get_reservoir_pattern(network: str, reservoir: str) -> str | None:
@@ -211,7 +212,8 @@ async def fastapi_get_reservoir_pattern(network: str, reservoir: str) -> str | N
 
 @app.get("/getreservoircoord/")
 async def fastapi_get_reservoir_coord(network: str, reservoir: str) -> dict[str, float] | None:
-    return get_reservoir_coord(network, reservoir)
+    ps = get_reservoir_properties(network, reservoir)
+    return ps['coord']
 
 @app.post("/setreservoirhead/")
 async def fastapi_set_reservoir_head(network: str, reservoir: str, head: float) -> ChangeSet: