diff --git a/core/src/main/scala/org/bitcoins/core/gcs/SipHashKey.scala b/core/src/main/scala/org/bitcoins/core/gcs/SipHashKey.scala
index 7390216e6d..7ab5b0675f 100644
--- a/core/src/main/scala/org/bitcoins/core/gcs/SipHashKey.scala
+++ b/core/src/main/scala/org/bitcoins/core/gcs/SipHashKey.scala
@@ -1,4 +1,4 @@
-
+import scodec.bits.ByteVector
 case class SipHashKey(bytes: ByteVector) {
   require(
     bytes.size == 16,