diff --git a/doc/hackerbase.1 b/doc/hackerbase.1
index b6fae77..d6efdab 100644
--- a/doc/hackerbase.1
+++ b/doc/hackerbase.1
@@ -360,19 +360,19 @@ resulting keys are as follows:
 
 .RS
 .IP \[bu] 2
-member
+member - a list of periods when this person was a valid member
 .IP \[bu]
-student
+student - a list of periods when this member was a student
 .IP \[bu]
-suspend
+suspend - a list of periods when this member was suspended
 .IP \[bu]
-chair
+chair - a list of periods when this member was a chair
 .IP \[bu]
-council
+council - a list of periods when this member was a council member
 .IP \[bu]
-revision
+revision - a list of periods when this member was a revision committee member
 .IP \[bu]
-grant
+grant - a list of periods when this member was a grant committee member
 .RE
 
 These keys with lists of periods are then used for determining member