1 files changed, 2 insertions, 2 deletions
diff --git a/m4/dos.m4 b/m4/dos.m4
index cc19185c2..868626e7e 100644
--- a/m4/dos.m4
+++ b/m4/dos.m4
@@ -1,11 +1,11 @@
-# serial 4
+#serial 5
 
 # Define some macros required for proper operation of code in lib/*.c
 # on MSDOS/Windows systems.
 
 # From Jim Meyering.
 
-AC_DEFUN(jm_AC_DOS,
+AC_DEFUN([jm_AC_DOS],
   [
     AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
       [