diff --git a/waspdb/src/main/java/net/rehacktive/waspdb/internals/collision/KryoStoreUtils.java b/waspdb/src/main/java/net/rehacktive/waspdb/internals/collision/KryoStoreUtils.java
index 96a8ec8..80add35 100755
--- a/waspdb/src/main/java/net/rehacktive/waspdb/internals/collision/KryoStoreUtils.java
+++ b/waspdb/src/main/java/net/rehacktive/waspdb/internals/collision/KryoStoreUtils.java
@@ -90,7 +90,7 @@ public static Object readFromDisk(String filename, Class type, CipherManager cip
 
 	// serializer for keys
 	public static byte[] serialize(Object o) {
-		byte[] ret = new byte[CollisionHash.MAXFILESIZE];
+		byte[] ret = new byte[CollisionHash.MAXFILESIZE*2];
 		Output output = new Output(ret);
 		getKryoInstance().writeObject(output, o);
 		return output.toBytes();