diff --git a/src/testdir/shared.vim b/src/testdir/shared.vim
index a9b0905..ad8afe1 100644
--- a/src/testdir/shared.vim
+++ b/src/testdir/shared.vim
@@ -122,11 +122,15 @@
 endfunc
 
 " Run Vim, using the "vimcmd" file and "-u NORC".
-" "before" is a list of commands to be executed before loading plugins.
-" "after" is a list of commands to be executed after loading plugins.
+" "before" is a list of Vim commands to be executed before loading plugins.
+" "after" is a list of Vim commands to be executed after loading plugins.
 " Plugins are not loaded, unless 'loadplugins' is set in "before".
 " Return 1 if Vim could be executed.
 func RunVim(before, after, arguments)
+  call RunVimPiped(a:before, a:after, a:arguments, '')
+endfunc
+
+func RunVimPiped(before, after, arguments, pipecmd)
   if !filereadable('vimcmd')
     return 0
   endif
@@ -145,7 +149,13 @@
   if cmd !~ '-u NONE'
     let cmd = cmd . ' -u NONE'
   endif
-  exe "silent !" . cmd . args . ' ' . a:arguments
+
+  " With pipecmd we can't set VIMRUNTIME.
+  if a:pipecmd != ''
+    let cmd = substitute(cmd, 'VIMRUNTIME=.*VIMRUNTIME;', '', '')
+  endif
+
+  exe "silent !" . a:pipecmd . cmd . args . ' ' . a:arguments
 
   if len(a:before) > 0
     call delete('Xbefore.vim')
diff --git a/src/testdir/test_startup.vim b/src/testdir/test_startup.vim
index 384dcbe..652318f 100644
--- a/src/testdir/test_startup.vim
+++ b/src/testdir/test_startup.vim
@@ -169,3 +169,15 @@
   endif
   call delete('Xtestout')
 endfunc
+
+func Test_read_stdin()
+  let after = [
+	\ 'write Xtestout',
+	\ 'quit!',
+	\ ]
+  if RunVimPiped([], after, '-', 'echo something | ')
+    let lines = readfile('Xtestout')
+    call assert_equal('something', lines[0])
+  endif
+  call delete('Xtestout')
+endfunc
diff --git a/src/version.c b/src/version.c
index 29d845f..d87abe8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2178,
+/**/
     2177,
 /**/
     2176,