diff --git a/src/prompts.ts b/src/prompts.ts
index 28fb3f8..73c2759 100644
--- a/src/prompts.ts
+++ b/src/prompts.ts
@@ -63,6 +63,7 @@ _SPAN_NAME_MAP = {
     "tts_request_run": "tts",
     "stt_request": "stt",
     "stt_request_run": "stt",
+    "tool_call": "llm_tool_call",
 }