diff --git a/autoload/go/complete.vim b/autoload/go/complete.vim
index 9460b46204..a5992c63ad 100644
--- a/autoload/go/complete.vim
+++ b/autoload/go/complete.vim
@@ -9,6 +9,15 @@ function! s:gocodeCommand(cmd, args) abort
   let cmd = [bin_path]
   let cmd = extend(cmd, ['-sock', socket_type])
   let cmd = extend(cmd, ['-f', 'vim'])
+
+  if go#config#GocodeProposeBuiltins()
+    let cmd = extend(cmd, ['-builtin'])
+  endif
+
+  if go#config#GocodeProposeSource()
+    let cmd = extend(cmd, ['-source'])
+  endif
+
   let cmd = extend(cmd, [a:cmd])
   let cmd = extend(cmd, a:args)
 
@@ -43,31 +52,7 @@ function! s:sync_gocode(cmd, args, input) abort
   return l:result
 endfunction
 
-let s:optionsEnabled = 0
-function! s:gocodeEnableOptions() abort
-  if s:optionsEnabled
-    return
-  endif
-
-  let l:bin_path = go#path#CheckBinPath("gocode")
-  if empty(l:bin_path)
-    return
-  endif
-
-  let s:optionsEnabled = 1
-
-  call go#util#Exec(['gocode', 'set', 'propose-builtins', s:toBool(go#config#GocodeProposeBuiltins())])
-  call go#util#Exec(['gocode', 'set', 'autobuild', s:toBool(go#config#GocodeAutobuild())])
-  call go#util#Exec(['gocode', 'set', 'unimported-packages', s:toBool(go#config#GocodeUnimportedPackages())])
-endfunction
-
-function! s:toBool(val) abort
-  if a:val | return 'true' | else | return 'false' | endif
-endfunction
-
 function! s:gocodeAutocomplete() abort
-  call s:gocodeEnableOptions()
-
   " use the offset as is, because the cursor position is the position for
   " which autocomplete candidates are needed.
   return s:sync_gocode('autocomplete',
diff --git a/autoload/go/config.vim b/autoload/go/config.vim
index 140e41c5c0..8e72b1a83a 100644
--- a/autoload/go/config.vim
+++ b/autoload/go/config.vim
@@ -135,10 +135,6 @@ function! go#config#SetGuruScope(scope) abort
   endif
 endfunction
 
-function! go#config#GocodeUnimportedPackages() abort
-  return get(g:, 'go_gocode_unimported_packages', 0)
-endfunction
-
 let s:sock_type = (has('win32') || has('win64')) ? 'tcp' : 'unix'
 function! go#config#GocodeSocketType() abort
   return get(g:, 'go_gocode_socket_type', s:sock_type)
@@ -148,8 +144,8 @@ function! go#config#GocodeProposeBuiltins() abort
   return get(g:, 'go_gocode_propose_builtins', 1)
 endfunction
 
-function! go#config#GocodeAutobuild() abort
-  return get(g:, 'go_gocode_autobuild', 1)
+function! go#config#GocodeProposeSource() abort
+  return get(g:, 'go_gocode_propose_source', 0)
 endfunction
 
 function! go#config#EchoCommandInfo() abort
diff --git a/doc/vim-go.txt b/doc/vim-go.txt
index 638a2765d2..33015f40bb 100644
--- a/doc/vim-go.txt
+++ b/doc/vim-go.txt
@@ -1574,14 +1574,6 @@ same.
   let g:go_gorename_prefill = 'expand("<cword>") =~# "^[A-Z]"' .
         \ '? go#util#pascalcase(expand("<cword>"))' .
         \ ': go#util#camelcase(expand("<cword>"))'
-<
-                                                     *'g:go_gocode_autobuild'*
-
-Specifies whether `gocode` should automatically build out-of-date packages
-when their source fields are modified, in order to obtain the freshest
-autocomplete results for them.  By default it is enabled.
->
-  let g:go_gocode_autobuild = 1
 <
                                               *'g:go_gocode_propose_builtins'*
 
@@ -1590,14 +1582,14 @@ to an autocompletion proposals. By default it is enabled.
 >
   let g:go_gocode_propose_builtins = 1
 <
-                                           *'g:go_gocode_unimported_packages'*
+                                               *'g:go_gocode_propose_source'*
 
-Specifies whether `gocode` should include suggestions from unimported
-packages. By default it is disabled.
+Specifies whether `gocode` should use source files instead of binary packages
+for autocompletion proposals. By default it is disabled because it is
+currently much slower.
 >
-  let g:go_gocode_unimported_packages = 0
+  let g:go_gocode_propose_source = 0
 <
-
                                                    *'g:go_gocode_socket_type'*
 
 Specifies whether `gocode` should use a different socket type. By default
diff --git a/plugin/go.vim b/plugin/go.vim
index 95bf7fd524..01e19b7d93 100644
--- a/plugin/go.vim
+++ b/plugin/go.vim
@@ -35,7 +35,7 @@ let s:packages = {
       \ 'dlv':           ['github.com/derekparker/delve/cmd/dlv'],
       \ 'errcheck':      ['github.com/kisielk/errcheck'],
       \ 'fillstruct':    ['github.com/davidrjenni/reftools/cmd/fillstruct'],
-      \ 'gocode':        ['github.com/nsf/gocode', {'windows': ['-ldflags', '-H=windowsgui']}],
+      \ 'gocode':        ['github.com/mdempsky/gocode', {'windows': ['-ldflags', '-H=windowsgui']}],
       \ 'godef':         ['github.com/rogpeppe/godef'],
       \ 'gogetdoc':      ['github.com/zmb3/gogetdoc'],
       \ 'goimports':     ['golang.org/x/tools/cmd/goimports'],