1 files changed, 3 insertions, 1 deletions

diff --git a/src/editfns.c b/src/editfns.c
index 30357d59d85..29eef9a707c 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -1183,7 +1183,9 @@ they can be in either order.")
 }
 
 DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0,
-  "Return the contents of the current buffer as a string.")
+  "Return the contents of the current buffer as a string.\n\
+If narrowing is in effect, this function returns only the visible part\n\
+of the buffer.")
   ()
 {
   return make_buffer_string (BEGV, ZV);