diff --git a/mutable_xobject.go b/mutable_xobject.go
index 4fde087..0513073 100644
--- a/mutable_xobject.go
+++ b/mutable_xobject.go
@@ -7,7 +7,7 @@ type MutableXObject struct {
 func NewMxoArray() *MutableXObject {
 	p := new(MutableXObject)
 	p.XObject._type = XOT_ARRAY
-	p.XObject._val = make([]*XObject, 10)
+	p.XObject._val = make([]*XObject, 0)
 	return p
 }