; * src/xterm.h (struct x_display_info): Update comment.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/xterm.h b/src/xterm.h
index 3654c3d5db1..a0ae3a330a9 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -834,7 +834,8 @@ struct x_display_info
   bool server_time_monotonic_p;
 
   /* The time difference between the X server clock and the monotonic
-     clock, or 0 if unknown (FIXME: what if the difference is zero?).  */
+     clock, or 0 if unknown (if the difference is legitimately 0,
+     server_time_monotonic_p will be true).  */
   int_fast64_t server_time_offset;
 #endif
 };