diff --git a/src/osgTerrain/GeometryPool.cpp b/src/osgTerrain/GeometryPool.cpp
index 4c51783f0..905d156aa 100644
--- a/src/osgTerrain/GeometryPool.cpp
+++ b/src/osgTerrain/GeometryPool.cpp
@@ -262,7 +262,7 @@ osg::ref_ptr<SharedGeometry> GeometryPool::getOrCreateGeometry(osgTerrain::Terra
         }
     }
 
-    bool smallTile = numVertices <= 16384;
+    bool smallTile = numVertices < 65536;
 
     GLenum primitiveTypes = GL_QUADS;
 
diff --git a/src/osgTerrain/GeometryTechnique.cpp b/src/osgTerrain/GeometryTechnique.cpp
index b2a15e4c1..bf4ce4d82 100644
--- a/src/osgTerrain/GeometryTechnique.cpp
+++ b/src/osgTerrain/GeometryTechnique.cpp
@@ -994,7 +994,7 @@ void GeometryTechnique::generateGeometry(BufferData& buffer, Locator* masterLoca
     // populate the primitive data
     //
     bool swapOrientation = !(masterLocator->orientationOpenGL());
-    bool smallTile = numVertices <= 16384;
+    bool smallTile = numVertices < 65536;
 
     // OSG_NOTICE<<"smallTile = "<<smallTile<<std::endl;