diff --git a/docs/sources/installation/debian.md b/docs/sources/installation/debian.md
index 3deda47637..8f4f31c29d 100644
--- a/docs/sources/installation/debian.md
+++ b/docs/sources/installation/debian.md
@@ -30,6 +30,7 @@ To install the latest Debian package (may not be the latest Docker release):
     $ sudo apt-get update
     $ sudo apt-get install docker.io
     $ sudo ln -sf /usr/bin/docker.io /usr/local/bin/docker
+    $ sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/docker.io
 
 To verify that everything has worked as expected:
 
diff --git a/docs/sources/installation/ubuntulinux.md b/docs/sources/installation/ubuntulinux.md
index bf9992f716..876eb5d290 100644
--- a/docs/sources/installation/ubuntulinux.md
+++ b/docs/sources/installation/ubuntulinux.md
@@ -36,6 +36,7 @@ To install the latest Ubuntu package (may not be the latest Docker release):
     $ sudo apt-get update
     $ sudo apt-get install docker.io
     $ sudo ln -sf /usr/bin/docker.io /usr/local/bin/docker
+    $ sudo sed -i '$acomplete -F _docker docker' /etc/bash_completion.d/docker.io
 
 To verify that everything has worked as expected: