diff --git a/doc/ck_hs_put b/doc/ck_hs_put
index b1d3cf4..d920839 100644
--- a/doc/ck_hs_put
+++ b/doc/ck_hs_put
@@ -69,7 +69,7 @@ Upon successful completion,
 returns true and otherwise returns false on failure.
 .Sh ERRORS
 Behavior is undefined if
-.Fa entry
+.Fa key
 or
 .Fa hs
 are uninitialized. The function will also
diff --git a/doc/ck_hs_set b/doc/ck_hs_set
index 5aae4b8..0b08f19 100644
--- a/doc/ck_hs_set
+++ b/doc/ck_hs_set
@@ -73,7 +73,7 @@ Upon successful completion,
 returns true and otherwise returns false on failure.
 .Sh ERRORS
 Behavior is undefined if
-.Fa entry
+.Fa key
 or
 .Fa hs
 are uninitialized. The function will also