diff --git a/go.mod b/go.mod
index b6e17547..34bc5063 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/prometheus/client_golang v1.12.1
 	github.com/streadway/amqp v1.0.0
 	github.com/tidwall/assert v0.1.0
-	github.com/tidwall/btree v1.4.3
+	github.com/tidwall/btree v1.4.4
 	github.com/tidwall/buntdb v1.2.9
 	github.com/tidwall/geojson v1.3.6
 	github.com/tidwall/gjson v1.14.3
diff --git a/go.sum b/go.sum
index 9905964d..8674dd65 100644
--- a/go.sum
+++ b/go.sum
@@ -350,8 +350,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/tidwall/assert v0.1.0 h1:aWcKyRBUAdLoVebxo95N7+YZVTFF/ASTr7BN4sLP6XI=
 github.com/tidwall/assert v0.1.0/go.mod h1:QLYtGyeqse53vuELQheYl9dngGCJQ+mTtlxcktb+Kj8=
 github.com/tidwall/btree v1.1.0/go.mod h1:TzIRzen6yHbibdSfK6t8QimqbUnoxUSrZfeW7Uob0q4=
-github.com/tidwall/btree v1.4.3 h1:Lf5U/66bk0ftNppOBjVoy/AIPBrLMkheBp4NnSNiYOo=
-github.com/tidwall/btree v1.4.3/go.mod h1:LGm8L/DZjPLmeWGjv5kFrY8dL4uVhMmzmmLYmsObdKE=
+github.com/tidwall/btree v1.4.4 h1:tOsRz2Upq6BEJz8T++C6THzNh9xGWymBOOSfA7ffNXY=
+github.com/tidwall/btree v1.4.4/go.mod h1:LGm8L/DZjPLmeWGjv5kFrY8dL4uVhMmzmmLYmsObdKE=
 github.com/tidwall/buntdb v1.2.9 h1:XVz684P7X6HCTrdr385yDZWB1zt/n20ZNG3M1iGyFm4=
 github.com/tidwall/buntdb v1.2.9/go.mod h1:IwyGSvvDg6hnKSIhtdZ0AqhCZGH8ukdtCAzaP8fI1X4=
 github.com/tidwall/cities v0.1.0 h1:CVNkmMf7NEC9Bvokf5GoSsArHCKRMTgLuubRTHnH0mE=
diff --git a/internal/object/object_binary.go b/internal/object/object_binary.go
index f84ccb45..832c2b50 100644
--- a/internal/object/object_binary.go
+++ b/internal/object/object_binary.go
@@ -63,24 +63,18 @@ func varint(s string) (int64, int) {
 }
 
 func (o *Object) ID() string {
-	if o == nil {
-		return ""
+	if o.head[1] == 0 {
+		return o.head[2:]
 	}
 	_, n := varint(o.head[1:])
 	return o.head[1+n:]
 }
 
 func (o *Object) Fields() field.List {
-	if o == nil {
-		return field.List{}
-	}
 	return o.fields
 }
 
 func (o *Object) Expires() int64 {
-	if o == nil {
-		return 0
-	}
 	ex, _ := varint(o.head[1:])
 	return ex
 }
@@ -111,15 +105,15 @@ func (o *Object) IsSpatial() bool {
 }
 
 func (o *Object) Weight() int {
-	if o == nil {
-		return 0
-	}
 	var weight int
 	weight += len(o.ID())
-	if o.IsSpatial() {
-		weight += o.Geo().NumPoints() * 16
-	} else {
-		weight += len(o.Geo().String())
+	ogeo := o.geo()
+	if ogeo != nil {
+		if o.IsSpatial() {
+			weight += ogeo.NumPoints() * 16
+		} else {
+			weight += len(ogeo.String())
+		}
 	}
 	weight += o.Fields().Weight()
 	return weight
@@ -127,7 +121,10 @@ func (o *Object) Weight() int {
 
 func makeHead(kind byte, id string, expires int64) string {
 	var exb [20]byte
-	exn := binary.PutVarint(exb[:], expires)
+	exn := 1
+	if expires != 0 {
+		exn = binary.PutVarint(exb[:], expires)
+	}
 	n := 1 + exn + len(id)
 	head := make([]byte, n)
 	head[0] = kind