diff --git a/sources/tech/20180727 How to analyze your system with perf and Python.md b/sources/tech/20180727 How to analyze your system with perf and Python.md
index c1be98cc0e..ccc66b04a7 100644
--- a/sources/tech/20180727 How to analyze your system with perf and Python.md	
+++ b/sources/tech/20180727 How to analyze your system with perf and Python.md	
@@ -1,3 +1,5 @@
+pinewall translating
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 How to analyze your system with perf and Python
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