diff --git a/autoload/SpaceVim/layers/tmux.vim b/autoload/SpaceVim/layers/tmux.vim
index 1a1632c73..747e832b3 100644
--- a/autoload/SpaceVim/layers/tmux.vim
+++ b/autoload/SpaceVim/layers/tmux.vim
@@ -3,16 +3,18 @@
 " @parentsection layers
 " Adds integration between tmux and vim panes. Switch between panes
 " seamlessly.
+" This layer is not added by default. To include it, add
+" `SpaceVim#layers#load('tmux')` to your `~/.SpaceVim.d/init.vim`
 "
 " @subsection mappings
-"
-" Key       Mode        Function
-" ------------------------------
-" <C-h>     normal      Switch to pane in left direction
-" <C-j>     normal      Switch to pane in down direction
-" <C-k>     normal      Switch to pane in up direction
-" <C-l>     normal      Switch to pane in right direction
-"
+" >
+"   Key       Mode        Function
+"   ------------------------------
+"   <C-h>     normal      Switch to pane in left direction
+"   <C-j>     normal      Switch to pane in down direction
+"   <C-k>     normal      Switch to pane in up direction
+"   <C-l>     normal      Switch to pane in right direction
+" <
 
 function! SpaceVim#layers#tmux#plugins() abort
     let plugins = []
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index 18b6c7559..cee353e4e 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -694,14 +694,19 @@ For more info, read |deol| and |vimshell|.
 TMUX                                                     *SpaceVim-layer-tmux*
 
 Adds integration between tmux and vim panes. Switch between panes seamlessly.
+This layer is not added by default. To include it, add
+`SpaceVim#layers#load('tmux')` to your `~/.SpaceVim.d/init.vim`
 
 MAPPINGS
 
-Key       Mode        Function ------------------------------ <C-h>     normal
-Switch to pane in left direction <C-j>     normal      Switch to pane in down
-direction <C-k>     normal      Switch to pane in up direction <C-l>
-normal      Switch to pane in right direction
-
+>
+  Key       Mode        Function
+  ------------------------------
+  <C-h>     normal      Switch to pane in left direction
+  <C-j>     normal      Switch to pane in down direction
+  <C-k>     normal      Switch to pane in up direction
+  <C-l>     normal      Switch to pane in right direction
+<
 
 ==============================================================================
 FAQ                                                             *SpaceVim-faq*