diff --git a/pstoremem/addr_book.go b/pstoremem/addr_book.go
index 8ea785d..2bc80f1 100644
--- a/pstoremem/addr_book.go
+++ b/pstoremem/addr_book.go
@@ -39,8 +39,8 @@ type addrSegment struct {
 	size  uint32
 }
 
-func (s *addrSegments) get(id peer.ID) *addrSegment {
-	b := []byte(id)
+func (s *addrSegments) get(p peer.ID) *addrSegment {
+	b := []byte(p)
 	return s[b[len(b)-1]]
 }
 
diff --git a/pstoremem/protobook.go b/pstoremem/protobook.go
index e401701..a112d00 100644
--- a/pstoremem/protobook.go
+++ b/pstoremem/protobook.go
@@ -20,8 +20,8 @@ type protoSegment struct {
 
 type protoSegments [256]*protoSegment
 
-func (s *protoSegments) get(id peer.ID) *protoSegment {
-	b := []byte(id)
+func (s *protoSegments) get(p peer.ID) *protoSegment {
+	b := []byte(p)
 	return s[b[len(b)-1]]
 }