diff --git a/.gitignore b/.gitignore
index c014bb1..74f857f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -382,5 +382,8 @@ OpenClaw*.md
 .playwright-mcp/
 aiconfig-*.png
 
+# 运行时错误日志
+backend-single/backend.err
+
 # Windows 临时空文件
 nul