diff --git a/src/agents/pi-embedded-runner/run/abortable.ts b/src/agents/pi-embedded-runner/run/abortable.ts
index c5ec7bf4661..a3f4c705f80 100644
--- a/src/agents/pi-embedded-runner/run/abortable.ts
+++ b/src/agents/pi-embedded-runner/run/abortable.ts
@@ -2,7 +2,7 @@ function getAbortReason(signal: AbortSignal): unknown {
   return "reason" in signal ? (signal as { reason?: unknown }).reason : undefined;
 }
 
-export function makeAbortError(signal: AbortSignal): Error {
+function makeAbortError(signal: AbortSignal): Error {
   const reason = getAbortReason(signal);
   if (reason instanceof Error) {
     const err = new Error(reason.message, { cause: reason });