diff --git a/sources/tech/20170410 Writing a Time Series Database from Scratch.md b/sources/tech/20170410 Writing a Time Series Database from Scratch.md
index ba66193a0d..a7f8289b63 100644
--- a/sources/tech/20170410 Writing a Time Series Database from Scratch.md	
+++ b/sources/tech/20170410 Writing a Time Series Database from Scratch.md	
@@ -1,4 +1,4 @@
-[haoqixu翻译中]Writing a Time Series Database from Scratch
+Writing a Time Series Database from Scratch
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