diff --git a/msdos/sedlibmk.inp b/msdos/sedlibmk.inp
index 18f9d911c56..5680126ad7a 100644
--- a/msdos/sedlibmk.inp
+++ b/msdos/sedlibmk.inp
@@ -289,7 +289,7 @@ s/@PACKAGE@/emacs/
 /^MKDIR_P *=/s/@MKDIR_P@/echo/
 /^NEXT_AS_FIRST_DIRECTIVE_DIRENT_H *=/s/@[^@\n]*@/<dirent.h>/
 /^NEXT_AS_FIRST_DIRECTIVE_ERRNO_H *=/s/@[^@\n]*@//
-/^NEXT_AS_FIRST_DIRECTIVE_ENDIAN_H *=/s/@[^@\n]*@/<machine/endian.h>/
+/^NEXT_AS_FIRST_DIRECTIVE_ENDIAN_H *=/s|@[^@\n]*@|<machine/endian.h>|
 /^NEXT_AS_FIRST_DIRECTIVE_FCNTL_H *=/s/@[^@\n]*@/<fcntl.h>/
 /^NEXT_AS_FIRST_DIRECTIVE_GETOPT_H *=/s/@[^@\n]*@/<getopt.h>/
 /^NEXT_AS_FIRST_DIRECTIVE_LIMITS_H *=/s/@[^@\n]*@/<limits.h>/
@@ -308,7 +308,7 @@ s/@PACKAGE@/emacs/
 /^NEXT_DIRENT_H *=/s/@[^@\n]*@/<dirent.h>/
 /^NEXT_DIRENT_H *=/s/@[^@\n]*@/<dirent.h>/
 /^NEXT_ERRNO_H *=/s/@[^@\n]*@//
-/^NEXT_ENDIAN_H *=/s/@[^@\n]*@/<machine/endian.h>/
+/^NEXT_ENDIAN_H *=/s|@[^@\n]*@|<machine/endian.h>|
 /^NEXT_FCNTL_H *=/s/@[^@\n]*@/<fcntl.h>/
 /^NEXT_FLOAT_H *=/s/@[^@\n]*@//
 /^NEXT_GETOPT_H *=/s/@[^@\n]*@/<getopt.h>/