diff --git a/encode.go b/encode.go
index 60a9422..9c34d98 100644
--- a/encode.go
+++ b/encode.go
@@ -2,11 +2,13 @@ package coding
 
 import (
 	"bytes"
+
 	"github.com/icza/bitio"
 	"github.com/samber/lo"
+	"github.com/securemesh/coding/heap"
 )
 
-func Encode(h *Heap, msg []byte) []byte {
+func Encode(h *heap.Heap, msg []byte) []byte {
 	buf := &bytes.Buffer{}
 	w := bitio.NewWriter(buf)
 
diff --git a/heap.go b/heap/heap.go
similarity index 98%
rename from heap.go
rename to heap/heap.go
index d996dd0..c07a31e 100644
--- a/heap.go
+++ b/heap/heap.go
@@ -1,4 +1,4 @@
-package coding
+package heap
 
 import (
 	"maps"
diff --git a/seeds.go b/seeds.go
index 1836241..29cfbef 100644
--- a/seeds.go
+++ b/seeds.go
@@ -1,5 +1,9 @@
 package coding
 
+import (
+	"github.com/securemesh/coding/heap"
+)
+
 var chatHeap = newHeapFromSeed([][]byte{
 	[]byte(`]\_}`),
 	[]byte(`[ê%=Z`),
@@ -18,12 +22,12 @@ var chatHeap = newHeapFromSeed([][]byte{
 	[]byte(` `),
 })
 
-func ChatHeap() *Heap {
+func ChatHeap() *heap.Heap {
 	return chatHeap.Clone()
 }
 
-func newHeapFromSeed(seed [][]byte) *Heap {
-	h := NewHeap()
+func newHeapFromSeed(seed [][]byte) *heap.Heap {
+	h := heap.NewHeap()
 
 	for i := range seed {
 		for _, s := range seed[i:] {