1 files changed, 4 insertions, 1 deletions

diff --git a/src/minibuf.c b/src/minibuf.c
index dd7bb42263b..d50e7404ab3 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -2673,7 +2673,10 @@ property of a history variable overrides this default.  */);
   Vcompletion_auto_help = Qt;
 
   DEFVAR_BOOL ("completion-ignore-case", &completion_ignore_case,
-               doc: /* Non-nil means don't consider case significant in completion.  */);
+               doc: /* Non-nil means don't consider case significant in completion.
+
+See also `read-file-name-completion-ignore-case' concerning case significance
+in completion when reading a file name.  */);
   completion_ignore_case = 0;
 
   DEFVAR_BOOL ("enable-recursive-minibuffers", &enable_recursive_minibuffers,