Fixes: debbugs:18140

* macros.c (Fstart_kbd_macro): Initialize kbd_macro_ptr and
kbd_macro_end together with kbd_macro_buffer.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/macros.c b/src/macros.c
index d0cf3c2c58d..5bed625ff41 100644
--- a/src/macros.c
+++ b/src/macros.c
@@ -65,6 +65,8 @@ macro before appending to it.  */)
     {
       current_kboard->kbd_macro_buffer = xmalloc (30 * word_size);
       current_kboard->kbd_macro_bufsize = 30;
+      current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer;
+      current_kboard->kbd_macro_end = current_kboard->kbd_macro_buffer;
     }
   update_mode_lines = 19;
   if (NILP (append))