diff --git a/codex-rs/core/src/tools/network_approval.rs b/codex-rs/core/src/tools/network_approval.rs
index fdc69a9876..4e4f06b739 100644
--- a/codex-rs/core/src/tools/network_approval.rs
+++ b/codex-rs/core/src/tools/network_approval.rs
@@ -574,6 +574,10 @@ mod tests {
             TaskKind::Regular
         }
 
+        fn span_name(&self) -> &'static str {
+            "network_approval_test_noop_task"
+        }
+
         async fn run(
             self: Arc<Self>,
             _session: Arc<SessionTaskContext>,