1 files changed, 1 insertions, 0 deletions

diff --git a/src/buffer.c b/src/buffer.c
index c2e72e156f3..4c3f5b70e5e 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -3603,6 +3603,7 @@ A string is printed verbatim in the mode line except for %-constructs:\n\
         % means buffer is read-only and * means it is modified.\n\
         For a modified read-only buffer, %* gives % and %+ gives *.\n\
   %s -- print process status.   %l -- print the current line number.\n\
+  %c -- print the current column number (this makes editing slower).\n\
   %p -- print percent of buffer above top of window, or Top, Bot or All.\n\
   %P -- print percent of buffer above bottom of window, perhaps plus Top,\n\
         or print Bottom or All.\n\