diff --git a/src/testdir/test_retab.vim b/src/testdir/test_retab.vim
index 4e3d0fd..3bd8a99 100644
--- a/src/testdir/test_retab.vim
+++ b/src/testdir/test_retab.vim
@@ -1,5 +1,7 @@
 " Test :retab
 
+source check.vim
+
 func SetUp()
   new
   call setline(1, "\ta  \t    b        c    ")
@@ -90,6 +92,9 @@
 endfunc
 
 func Test_retab_endless()
+  " FIXME: why does this hang on MS-Windows?
+  CheckNotMSWindows
+
   " inside try/catch we catch the error message
   new
   call setline(1, "\t0\t")
@@ -105,7 +110,7 @@
 endfunc
 
 func Test_nocatch_retab_endless()
-  " FIXME: why does this hang on MS-Windows?
+  " FIXME: does this hang on MS-Windows?
   CheckNotMSWindows
 
   " not inside try/catch an interrupt is generated to get out of loops