1 files changed, 2 insertions, 0 deletions
diff --git a/mh/mark.c b/mh/mark.c
index 15642688f..0a40cc50f 100644
--- a/mh/mark.c
+++ b/mh/mark.c
@@ -18,6 +18,8 @@
 #include <mh.h>
 
 const char *program_version = "mark (" PACKAGE_STRING ")";
+/* TRANSLATORS: Please, preserve the vertical tabulation (^K character)
+   in this message */
 static char doc[] = N_("GNU MH mark\v"
 "Use -help to obtain the list of traditional MH options.");
 static char args_doc[] = "[msgs...]";