diff --git a/src/fastmcp/server/server.py b/src/fastmcp/server/server.py
index b653711aa..2f00e2017 100644
--- a/src/fastmcp/server/server.py
+++ b/src/fastmcp/server/server.py
@@ -621,9 +621,7 @@ class FastMCP(
                 )
 
             # Core logic: list tools
-            with server_span(
-                "tools/list", "tools/list", self.name, "tool", ""
-            ):
+            with server_span("tools/list", "tools/list", self.name, "tool", ""):
                 # Get all tools, apply session transforms, then filter enabled
                 # and model-visible (app-only tools are hidden from the model).
                 tools = list(await super().list_tools())
@@ -1028,9 +1026,7 @@ class FastMCP(
                 )
 
             # Core logic: list prompts
-            with server_span(
-                "prompts/list", "prompts/list", self.name, "prompt", ""
-            ):
+            with server_span("prompts/list", "prompts/list", self.name, "prompt", ""):
                 # Get all prompts, apply session transforms, then filter enabled
                 prompts = list(await super().list_prompts())
                 prompts = await apply_session_transforms(prompts)
diff --git a/tests/client/telemetry/test_client_list_tracing.py b/tests/client/telemetry/test_client_list_tracing.py
index 33f066f5f..45038bbad 100644
--- a/tests/client/telemetry/test_client_list_tracing.py
+++ b/tests/client/telemetry/test_client_list_tracing.py
@@ -70,8 +70,7 @@ class TestClientListToolsTracing:
             (
                 s
                 for s in tools_list_spans
-                if s.attributes is not None
-                and "fastmcp.server.name" in s.attributes
+                if s.attributes is not None and "fastmcp.server.name" in s.attributes
             ),
             None,
         )