diff --git a/zic.8 b/zic.8
index 880670c..91f5ee5 100644
--- a/zic.8
+++ b/zic.8
@@ -363,7 +363,13 @@ should be
 if a second was added
 or
 .q -
-if a second was skipped.
+if a second was skipped
+or
+.q +
+immediately followed by the number of seconds added
+or
+.q -
+immediately followed by the number of seconds skipped.
 The
 .B R/S
 field