diff --git a/doc/indent_guides.txt b/doc/indent_guides.txt
index ad74ca0..4df247b 100644
--- a/doc/indent_guides.txt
+++ b/doc/indent_guides.txt
@@ -179,6 +179,14 @@ map it to other keys. For example:
   :nmap <silent> <Leader>ig <Plug>IndentGuidesToggle
 <
 
+The plugin will not provide the default mapping if either:
+  * You already have something mapped to <Plug>IndentGuidesToggle.
+  * You are already using the <Leader>ig key sequence.
+  * You set to 0 the variable g:indent_guides_default_mapping:
+>
+  let g:indent_guides_default_mapping=0
+<
+
 You can also map some other commands that are not mapped by default. For
 example:
 >
diff --git a/plugin/indent_guides.vim b/plugin/indent_guides.vim
index aea16e6..7fbc41e 100644
--- a/plugin/indent_guides.vim
+++ b/plugin/indent_guides.vim
@@ -54,7 +54,7 @@ call s:InitVariable('g:indent_guides_enable_on_vim_startup', 0)
 call s:InitVariable('g:indent_guides_debug', 0)
 call s:InitVariable('g:indent_guides_space_guides', 1)
 call s:InitVariable('g:indent_guides_soft_pattern', '\s')
-
+call s:InitVariable('g:indent_guides_default_mapping', 1)
 
 if !exists('g:indent_guides_exclude_filetypes')
   let g:indent_guides_exclude_filetypes = ['help']
@@ -62,6 +62,7 @@ endif
 
 " Default mapping
 if !hasmapto('<Plug>IndentGuidesToggle', 'n') && maparg('<Leader>ig', 'n') == ''
+    \ && g:indent_guides_default_mapping != 0
   nmap <silent><unique> <Leader>ig <Plug>IndentGuidesToggle
 endif