diff --git a/service/basic/fastapi/main.py b/service/basic/fastapi/main.py
index 8d984746..d422a6fc 100644
--- a/service/basic/fastapi/main.py
+++ b/service/basic/fastapi/main.py
@@ -6,6 +6,6 @@
 def read_root():
     return {"Hello": "World"}
 
-@app.get("/items/{item_id}")
-def read_item(item_id: int, q: str | None = None):
-    return {"item_id": item_id, "q": q}
+@app.get("/double/{number}")
+def read_item(number: int | None = None):
+    return {"double": (number * 2)}