diff --git a/components/terrain/quadtreeworld.cpp b/components/terrain/quadtreeworld.cpp
index 74e9fd5128..54c6c1470c 100644
--- a/components/terrain/quadtreeworld.cpp
+++ b/components/terrain/quadtreeworld.cpp
@@ -235,6 +235,11 @@ QuadTreeWorld::~QuadTreeWorld()
         mWorkItem->abort();
         mWorkItem->waitTillDone();
     }
+
+    if (mRootNode && mRootNode->getViewDataMap())
+    {
+        mRootNode->getViewDataMap()->clear();
+    }
 }