diff --git a/engine/src/core/com/jme3/scene/debug/Arrow.java b/engine/src/core/com/jme3/scene/debug/Arrow.java
index 0b26839a6..1c3dd9454 100644
--- a/engine/src/core/com/jme3/scene/debug/Arrow.java
+++ b/engine/src/core/com/jme3/scene/debug/Arrow.java
@@ -34,6 +34,7 @@ package com.jme3.scene.debug;
 import com.jme3.math.Quaternion;
 import com.jme3.math.Vector3f;
 import com.jme3.scene.Mesh;
+import com.jme3.scene.VertexBuffer;
 import com.jme3.scene.VertexBuffer.Type;
 import java.nio.FloatBuffer;
 
@@ -118,7 +119,8 @@ public class Arrow extends Mesh {
         tempQuat.lookAt(extent, Vector3f.UNIT_Y);
         tempQuat.normalizeLocal();
 
-        FloatBuffer buffer = getFloatBuffer(Type.Position);
+        VertexBuffer pvb = getBuffer(Type.Position);
+        FloatBuffer buffer = (FloatBuffer)pvb.getData(); 
         buffer.rewind();
         for (int i = 0; i < positions.length; i += 3) {
             Vector3f vec = tempVec.set(positions[i],
@@ -131,6 +133,8 @@ public class Arrow extends Mesh {
             buffer.put(vec.y);
             buffer.put(vec.z);
         }
+        
+        pvb.updateData(buffer);
 
         updateBound();
         updateCounts();