diff --git a/src/core/webview/__tests__/diagnosticsHandler.spec.ts b/src/core/webview/__tests__/diagnosticsHandler.spec.ts
index fcfe216209..38d55e01c5 100644
--- a/src/core/webview/__tests__/diagnosticsHandler.spec.ts
+++ b/src/core/webview/__tests__/diagnosticsHandler.spec.ts
@@ -74,7 +74,7 @@ describe("generateErrorDiagnostics", () => {
 		})
 
 		expect(result.success).toBe(true)
-		expect(result.filePath).toContain("roo-diagnostics-")
+		expect(result.filePath).toContain("zoo-diagnostics-")
 
 		// Verify we attempted to read API history
 		expect(fs.readFile).toHaveBeenCalledWith(path.join("/mock/task-dir", "api_conversation_history.json"), "utf8")
@@ -83,7 +83,7 @@ describe("generateErrorDiagnostics", () => {
 		expect(fs.writeFile).toHaveBeenCalledTimes(1)
 		const [writtenPath, writtenContent] = vi.mocked(fs.writeFile).mock.calls[0]
 		// taskId.slice(0, 8) = "test-tas" from "test-task-id"
-		expect(String(writtenPath)).toContain("roo-diagnostics-test-tas")
+		expect(String(writtenPath)).toContain("zoo-diagnostics-test-tas")
 		expect(String(writtenContent)).toContain(
 			"// Please share this file with Zoo Code Support (support@zoocode.dev) to diagnose the issue faster",
 		)
diff --git a/src/core/webview/diagnosticsHandler.ts b/src/core/webview/diagnosticsHandler.ts
index b82e209dce..6d242531c1 100644
--- a/src/core/webview/diagnosticsHandler.ts
+++ b/src/core/webview/diagnosticsHandler.ts
@@ -73,7 +73,7 @@ export async function generateErrorDiagnostics(params: GenerateDiagnosticsParams
 		// Create a temporary diagnostics file
 		const tmpDir = os.tmpdir()
 		const timestamp = Date.now()
-		const tempFileName = `roo-diagnostics-${taskId.slice(0, 8)}-${timestamp}.json`
+		const tempFileName = `zoo-diagnostics-${taskId.slice(0, 8)}-${timestamp}.json`
 		const tempFilePath = path.join(tmpDir, tempFileName)
 
 		await fs.writeFile(tempFilePath, fullContent, "utf8")