diff --git a/INSTALL.markdown b/INSTALL.markdown
index 1c9cad4..aeeced1 100644
--- a/INSTALL.markdown
+++ b/INSTALL.markdown
@@ -14,6 +14,8 @@ pickle install redis
 To build this extension for the sources tree:
 
 ~~~
+git clone https://github.com/phpredis/phpredis.git
+cd phpredis
 phpize
 ./configure [--enable-redis-igbinary] [--enable-redis-msgpack] [--enable-redis-lzf [--with-liblzf[=DIR]]] [--enable-redis-zstd]
 make && make install