diff --git a/Libraries/ReactNative/FabricUIManager.js b/Libraries/ReactNative/FabricUIManager.js
index e5989b330..df6ea4f0c 100644
--- a/Libraries/ReactNative/FabricUIManager.js
+++ b/Libraries/ReactNative/FabricUIManager.js
@@ -12,5 +12,53 @@
  */
 'use strict';
 
-// TODO @sema Fix me
-module.exports = {};
+// TODO: fix the types
+type Node = number;
+type NodeSet = number;
+type NodeProps = {};
+type Spec = {|
+  +createNode: (
+    reactTag: number,
+    viewName: string,
+    rootTag: number,
+    props: NodeProps,
+    instanceHandle: number,
+  ) => Node,
+  +cloneNode: (node: Node) => Node,
+  +cloneNodeWithNewChildren: (node: Node) => Node,
+  +cloneNodeWithNewProps: (node: Node, newProps: NodeProps) => Node,
+  +cloneNodeWithNewChildrenAndProps: (node: Node, newProps: NodeProps) => Node,
+  +appendChild: (parentNode: Node, child: Node) => Node,
+  +appendChildToSet: (childSet: NodeSet, child: Node) => void,
+  +completeRoot: (rootTag: number, childSet: NodeSet) => void,
+|};
+
+const NativeFabricUIManager: Spec = require('NativeModules').FabricUIManager;
+
+const FabricUIManager: Spec = {
+  createNode(
+    reactTag: number,
+    viewName: string,
+    rootTag: number,
+    props: NodeProps,
+    instanceHandle: number,
+  ): number {
+    return NativeFabricUIManager.createNode(
+      reactTag,
+      viewName,
+      rootTag,
+      props,
+      0, // TODO: instanceHandle is cannot be JSON serialized.
+    );
+  },
+  cloneNode: NativeFabricUIManager.cloneNode,
+  cloneNodeWithNewChildren: NativeFabricUIManager.cloneNodeWithNewChildren,
+  cloneNodeWithNewProps: NativeFabricUIManager.cloneNodeWithNewProps,
+  cloneNodeWithNewChildrenAndProps:
+    NativeFabricUIManager.cloneNodeWithNewChildrenAndProps,
+  appendChild: NativeFabricUIManager.appendChild,
+  appendChildToSet: NativeFabricUIManager.appendChildToSet,
+  completeRoot: NativeFabricUIManager.completeRoot,
+};
+
+module.exports = FabricUIManager;
diff --git a/Libraries/Renderer/ReactFabric-dev.js b/Libraries/Renderer/ReactFabric-dev.js
index f504078fa..68d381f6a 100644
--- a/Libraries/Renderer/ReactFabric-dev.js
+++ b/Libraries/Renderer/ReactFabric-dev.js
@@ -4718,7 +4718,7 @@ var enableMutatingReconciler = true;
 // Experimental noop mode (currently unused):
 var enableNoopReconciler = false;
 // Experimental persistent mode (Fabric):
-var enablePersistentReconciler = false;
+var enablePersistentReconciler = true;
 // Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
 var debugRenderPhaseSideEffects = false;