diff --git a/autoload/repl.vim b/autoload/repl.vim
index b02d62b..1317c8b 100644
--- a/autoload/repl.vim
+++ b/autoload/repl.vim
@@ -23,6 +23,19 @@ function! repl#run_repl() abort
   endif
 endfunction
 
+" Example:
+" if you didn't set g:repl_filetype_repl
+"     echo repl#get_filetype_repl('python')
+" => {'repl': 'python', 'opt': '-i'}
+function! repl#get_filetype_repl(filetype) abort
+	if !exists('g:repl_filetype_repl')
+		return g:repl#default_filetype_repl[a:filetype]
+	endif
+	let l:filetype_repl = deepcopy(g:repl#default_filetype_repl)
+	call extend(l:filetype_repl, g:repl_filetype_repl)
+	return l:filetype_repl[a:filetype]
+endfunction
+
 "-------------------"
 let &cpo = s:save_cpo
 unlet s:save_cpo
diff --git a/autoload/repl/erlang.vim b/autoload/repl/erlang.vim
index ec4412f..99d63cd 100644
--- a/autoload/repl/erlang.vim
+++ b/autoload/repl/erlang.vim
@@ -39,13 +39,12 @@ function! repl#erlang#open_repl() abort
     cd %:p:h
   endif
 
-  let l:repl = get(g:, 'repl_filetype_repl.erlang.repl', g:repl#default_filetype_repl.erlang['repl'])
-  let l:opt  = get(g:, 'repl_filetype_repl.erlang.opt', g:repl#default_filetype_repl.erlang['opt'])
-  if !executable(l:repl)
-    call repl#echo_error(printf("You don't have repl: '%s'", l:repl))
+  let l:repl = repl#get_filetype_repl('erlang')
+  if !executable(l:repl['repl'])
+    call repl#echo_error(printf("You don't have repl: '%s'", l:repl['repl']))
     return
   endif
-  let l:args                 = printf('%s %s %s', l:repl, l:opt, l:module_file)
+  let l:args                 = printf('%s %s %s', l:repl['repl'], l:repl['opt'], l:module_file)
   let l:vimshell_interactive = ':VimShellInteractive' . printf("--split='%s'", g:repl_split_command)
 
   execute l:vimshell_interactive l:args
diff --git a/autoload/repl/haskell.vim b/autoload/repl/haskell.vim
index 011919a..8737a66 100644
--- a/autoload/repl/haskell.vim
+++ b/autoload/repl/haskell.vim
@@ -10,13 +10,12 @@ function! repl#haskell#open_repl() abort
     let l:module_file = expand('%:p')
   endif
 
-  let l:repl = get(g:, 'repl_filetype_repl.haskell.repl', g:repl#default_filetype_repl.haskell['repl'])
-  let l:opt  = get(g:, 'repl_filetype_repl.haskell.opt', g:repl#default_filetype_repl.haskell['opt'])
-  if !executable(l:repl)
-    call repl#echo_error(printf("You don't have repl: '%s'", l:repl))
+  let l:repl = repl#get_filetype_repl('haskell')
+  if !executable(l:repl['repl'])
+    call repl#echo_error(printf("You don't have repl: '%s'", l:repl['repl']))
     return
   endif
-  let l:args                 = printf('%s %s %s', l:repl, l:opt, l:module_file)
+  let l:args                 = printf('%s %s %s', l:repl['repl'], l:repl['opt'], l:module_file)
   let l:vimshell_interactive = ':VimShellInteractive' . printf("--split='%s'", g:repl_split_command)
   execute l:vimshell_interactive l:args
 endfunction
diff --git a/autoload/repl/python.vim b/autoload/repl/python.vim
index 7f1a52f..5307401 100644
--- a/autoload/repl/python.vim
+++ b/autoload/repl/python.vim
@@ -10,13 +10,12 @@ function! repl#python#open_repl() abort
     let l:module_file = expand('%:p')
   endif
 
-  let l:repl = get(g:, 'repl_filetype_repl.python.repl', g:repl#default_filetype_repl.python['repl'])
-  let l:opt  = get(g:, 'repl_filetype_repl.python.opt', g:repl#default_filetype_repl.python['opt'])
-  if !executable(l:repl)
-    call repl#echo_error(printf("You don't have repl: '%s'", l:repl))
+  let l:repl = repl#get_filetype_repl('python')
+  if !executable(l:repl['repl'])
+    call repl#echo_error(printf("You don't have repl: '%s'", l:repl['repl']))
     return
   endif
-  let l:args                 = printf('%s %s %s', l:repl, l:opt, l:module_file)
+  let l:args                 = printf('%s %s %s', l:repl['repl'], l:repl['opt'], l:module_file)
   let l:vimshell_interactive = ':VimShellInteractive' . printf("--split='%s'", g:repl_split_command)
   execute l:vimshell_interactive l:args
 endfunction
diff --git a/autoload/repl/ruby.vim b/autoload/repl/ruby.vim
index f21eff8..44c4ddf 100644
--- a/autoload/repl/ruby.vim
+++ b/autoload/repl/ruby.vim
@@ -9,13 +9,12 @@ function! repl#ruby#open_repl() abort
     let l:module_file = expand('%:p')
   endif
 
-  let l:repl = get(g:, 'repl_filetype_repl.ruby.repl', g:repl#default_filetype_repl.ruby['repl'])
-  let l:opt  = get(g:, 'repl_filetype_repl.ruby.opt', g:repl#default_filetype_repl.ruby['opt'])
-  if !executable(l:repl)
-    call repl#echo_error(printf("You don't have repl: '%s'", l:repl))
+  let l:repl = repl#get_filetype_repl('ruby')
+  if !executable(l:repl['repl'])
+    call repl#echo_error(printf("You don't have repl: '%s'", l:repl['repl']))
     return
   endif
-  let l:args                 = printf('%s %s %s', l:repl, l:opt, l:module_file)
+  let l:args                 = printf('%s %s %s', l:repl['repl'], l:repl['opt'], l:module_file)
   let l:vimshell_interactive = ':VimShellInteractive' . printf("--split='%s'", g:repl_split_command)
   execute l:vimshell_interactive l:args
 endfunction
diff --git a/plugin/repl.vim b/plugin/repl.vim
index 1bb6eb4..99efbb6 100644
--- a/plugin/repl.vim
+++ b/plugin/repl.vim
@@ -26,7 +26,6 @@ let g:repl#default_filetype_repl = {
 \   'opt'  : ''
 \ }
 \}
-call extend(g:repl#default_filetype_repl, get(g:, 'repl_filetype_repl', {}))
 
 " 'split' or 'vertical split'
 let g:repl_split_command = get(g:, 'repl_split_command', 'split')
diff --git a/test/can_open.vim b/test/can_open.vim
index e6e6d6f..695e19f 100644
--- a/test/can_open.vim
+++ b/test/can_open.vim
@@ -1,4 +1,4 @@
-let s:suite  = themis#suite('can_open')
+let s:suite = themis#suite('can_open')
 
 function! s:suite.after_each()
   call UnletReplUserVariables()
@@ -16,8 +16,3 @@ function! s:suite.some_repl()
   " but repl.vim don't throw some exception
   new | setfiletype unknown | Repl
 endfunction
-
-function! s:suite.some_repl_with_split_command()
-  let g:repl_split_command = 'vertical split'
-  call s:suite.some_repl()
-endfunction
diff --git a/test/variable.vim b/test/variable.vim
new file mode 100644
index 0000000..cb97b89
--- /dev/null
+++ b/test/variable.vim
@@ -0,0 +1,32 @@
+let s:suite  = themis#suite('variable')
+let s:assert = themis#helper('assert')
+
+function! s:suite.after_each()
+  call UnletReplUserVariables()
+endfunction
+
+"-------------------"
+
+function! s:suite.g_repl_filetype_repl_is_valid()
+  let l:TARGET_FILETYPE = 'ruby' | lockvar l:TARGET_FILETYPE
+
+  " Default value
+  let l:DEFAULT_REPL_NAME = g:repl#default_filetype_repl[l:TARGET_FILETYPE]['repl'] | lockvar l:DEFAULT_REPL_NAME
+  let l:DEFAULT_REPL_OPT  = g:repl#default_filetype_repl[l:TARGET_FILETYPE]['opt']  | lockvar l:DEFAULT_REPL_OPT
+  let l:filetype_repl     = repl#get_filetype_repl(l:TARGET_FILETYPE)
+  call s:assert.equals(l:filetype_repl['repl'], l:DEFAULT_REPL_NAME)
+  call s:assert.equals(l:filetype_repl['opt'], l:DEFAULT_REPL_OPT)
+
+  " Not a default value
+  let l:REPL_NAME = 'dummy'   | lockvar l:REPL_NAME
+  let l:REPL_OPT  = '--dummy' | lockvar l:REPL_OPT
+  let g:repl_filetype_repl = {
+  \ l:TARGET_FILETYPE : {
+  \   'repl' : l:REPL_NAME,
+  \   'opt'  : l:REPL_OPT
+  \ }
+  \}
+  let l:filetype_repl = repl#get_filetype_repl(l:TARGET_FILETYPE)
+  call s:assert.equals(l:filetype_repl['repl'], l:REPL_NAME)
+  call s:assert.equals(l:filetype_repl['opt'], l:REPL_OPT)
+endfunction