diff --git a/crypto/ecies/ecies.go b/crypto/ecies/ecies.go
index 110ee7fde1..fffb0eb5a3 100644
--- a/crypto/ecies/ecies.go
+++ b/crypto/ecies/ecies.go
@@ -35,6 +35,7 @@ import (
 	"crypto/elliptic"
 	"crypto/hmac"
 	"crypto/subtle"
+	"encoding/binary"
 	"fmt"
 	"hash"
 	"io"