diff --git a/docs/tools/README.md b/docs/tools/README.md
index 132b2b36955..d4b6a2201f8 100644
--- a/docs/tools/README.md
+++ b/docs/tools/README.md
@@ -31,7 +31,7 @@ Follow the instructions on it's official website: <https://wkhtmltopdf.org/downl
 1. `apt-get install npm` for Debian/Ubuntu or `brew install npm` on Mac OS X.
 2. `npm install -g purifycss amphtml-validator`.
 
-#### 3. Set up virtualenv:
+#### 3. Set up virtualenv
 
 ``` bash
 $ cd ClickHouse/docs/tools