diff --git a/docs/docsite/rst/intro_installation.rst b/docs/docsite/rst/intro_installation.rst
index 9515aef643..bab89c9598 100644
--- a/docs/docsite/rst/intro_installation.rst
+++ b/docs/docsite/rst/intro_installation.rst
@@ -178,6 +178,7 @@ Then run these commands:
 
 .. code-block:: bash
 
+    $ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 93C4A3FD7BB9C367
     $ sudo apt-get update
     $ sudo apt-get install ansible