diff --git a/src/cli-web-branch.ts b/src/cli-web-branch.ts
index ab950f187..7b163404b 100644
--- a/src/cli-web-branch.ts
+++ b/src/cli-web-branch.ts
@@ -122,7 +122,7 @@ export function migrateLegacyFlatSessions(baseSessionsDir: string, projectSessio
 
 function emitWebModeFailure(stderr: WritableLike, status: WebModeLaunchStatus): void {
   if (status.ok) return
-  stderr.write(`[forge] Web mode launch failed: ${status.failureReason}\n`)
+  stderr.write(`[forge] Web mode launch failed: ${(status as any).failureReason}\n`)
 }
 
 /**
diff --git a/src/web-mode.ts b/src/web-mode.ts
index 622152025..281cea6c4 100644
--- a/src/web-mode.ts
+++ b/src/web-mode.ts
@@ -362,7 +362,7 @@ function formatLaunchStatus(status: WebModeLaunchStatus): string {
     return `[forge] Web mode startup: status=started cwd=${status.cwd} port=${status.port} host=${status.hostPath} kind=${status.hostKind} url=${status.url}\n`
   }
 
-  return `[forge] Web mode startup: status=failed cwd=${status.cwd} port=${status.port ?? 'n/a'} host=${status.hostPath ?? 'unresolved'} kind=${status.hostKind} reason=${status.failureReason}\n`
+  return `[forge] Web mode startup: status=failed cwd=${status.cwd} port=${status.port ?? 'n/a'} host=${status.hostPath ?? 'unresolved'} kind=${status.hostKind} reason=${(status as any).failureReason}\n`
 }
 
 function emitLaunchStatus(stderr: WritableLike, status: WebModeLaunchStatus): void {