diff --git a/config-serializer/Serializable.ts b/config-serializer/Serializable.ts
index ac056fc9..40dc942c 100644
--- a/config-serializer/Serializable.ts
+++ b/config-serializer/Serializable.ts
@@ -8,11 +8,14 @@ abstract class Serializable<T> {
 
     fromJsObject(jsObject: any): T {
         let identation = new Array(Serializable.depth + 1).join('    ');
-        process.stdout.write(`${identation}* ${this.constructor.name}.fromJsObject(${JSON.stringify(jsObject)}) => `);
+        let isArray = this instanceof UhkArray;
+        process.stdout.write(`${identation}* ${this.constructor.name}.fromJsObject(${JSON.stringify(jsObject)}) ` + (isArray ? ':\n' : `=> `));
         Serializable.depth++;
         let value = this._fromJsObject(jsObject);
         Serializable.depth--;
-        process.stdout.write(`${value.toString()}\n`);
+        if (!isArray) {
+            process.stdout.write(`${value.toString()}\n`);
+        }
         return value;
     }
 
diff --git a/config-serializer/UhkArray.ts b/config-serializer/UhkArray.ts
new file mode 100644
index 00000000..1cc92318
--- /dev/null
+++ b/config-serializer/UhkArray.ts
@@ -0,0 +1,6 @@
+abstract class UhkArray<T> extends Serializable<T> {
+    abstract _fromJsObject(jsObject: any): T;
+    abstract _fromBinary(buffer: UhkBuffer): T;
+    abstract _toJsObject(): any;
+    abstract _toBinary(buffer: UhkBuffer): void;
+}
diff --git a/config-serializer/config-items/KeyActions.ts b/config-serializer/config-items/KeyActions.ts
index 8b4bc640..e2516e5f 100644
--- a/config-serializer/config-items/KeyActions.ts
+++ b/config-serializer/config-items/KeyActions.ts
@@ -1,4 +1,4 @@
-class KeyActions extends Serializable<KeyActions> {
+class KeyActions extends UhkArray<KeyActions> {
 
     keyActions: Serializable<KeyAction>[] = [];
 
diff --git a/config-serializer/test-serializer.ts b/config-serializer/test-serializer.ts
index a69977de..759100b0 100644
--- a/config-serializer/test-serializer.ts
+++ b/config-serializer/test-serializer.ts
@@ -1,6 +1,7 @@
 /// <reference path="assert.ts" />
 /// <reference path="TypeChecker.ts" />
 /// <reference path="Serializable.ts" />
+/// <reference path="UhkArray.ts" />
 /// <reference path="UhkBuffer.ts" />
 /// <reference path="config-items/config-items.ts" />