1 files changed, 1 insertions, 1 deletions
diff --git a/time.c b/time.c
index 775640acb7..d9b68a5da4 100644
--- a/time.c
+++ b/time.c
@@ -2489,7 +2489,7 @@ time_subsec(VALUE time)
 
 /*
  *  call-seq:
- *     time <=> other_time => -1, 0, +1
+ *     time <=> other_time => -1, 0, +1 or nil
  *
  *  Comparison---Compares <i>time</i> with <i>other_time</i>.
  *