diff --git a/core/src/main/java/org/bitcoinj/core/Utils.java b/core/src/main/java/org/bitcoinj/core/Utils.java
index 840c8664..8639f319 100644
--- a/core/src/main/java/org/bitcoinj/core/Utils.java
+++ b/core/src/main/java/org/bitcoinj/core/Utils.java
@@ -92,7 +92,7 @@ public class Utils {
         out[offset + 3] = (byte) (0xFF & (val >> 24));
     }
 
-    public static void uint64ToByteArrayLE(long val, byte[] out, int offset) {
+    public static void int64ToByteArrayLE(long val, byte[] out, int offset) {
         out[offset] = (byte) (0xFF & val);
         out[offset + 1] = (byte) (0xFF & (val >> 8));
         out[offset + 2] = (byte) (0xFF & (val >> 16));
diff --git a/core/src/main/java/org/bitcoinj/core/VarInt.java b/core/src/main/java/org/bitcoinj/core/VarInt.java
index 7969ffa2..b990c237 100644
--- a/core/src/main/java/org/bitcoinj/core/VarInt.java
+++ b/core/src/main/java/org/bitcoinj/core/VarInt.java
@@ -105,7 +105,7 @@ public class VarInt {
             default:
                 bytes = new byte[9];
                 bytes[0] = (byte) 255;
-                Utils.uint64ToByteArrayLE(value, bytes, 1);
+                Utils.int64ToByteArrayLE(value, bytes, 1);
                 return bytes;
         }
     }