diff --git a/share/man/man4/ddb.4 b/share/man/man4/ddb.4
index e9ff5062617c..3b4b0b5df87e 100644
--- a/share/man/man4/ddb.4
+++ b/share/man/man4/ddb.4
@@ -241,6 +241,8 @@ No alternate format.
 .It Tn sparc64
 No alternate format.
 .El
+.It Cm S
+display a symbol name for the pointer stored at the address
 .El
 .Pp
 .It Ic xf