diff --git a/Readme.md b/Readme.md
index 622bf19..8fbe4be 100644
--- a/Readme.md
+++ b/Readme.md
@@ -20,6 +20,10 @@ dependencies
 
 boost program_options
 
+git clone https://github.com/zeromq/libzmq.git
+
+build with cmake
+
 https://github.com/zeromq/cppzmq/
 
 pip install zmq exifread
@@ -30,4 +34,4 @@ run on one thread:
 
 ```
 taskset -c 1 ./tracker
-```
\ No newline at end of file
+```