diff --git a/examples/osgparametric/osgparametric.cpp b/examples/osgparametric/osgparametric.cpp
index 252d41918..8ac767d40 100644
--- a/examples/osgparametric/osgparametric.cpp
+++ b/examples/osgparametric/osgparametric.cpp
@@ -114,6 +114,7 @@ osg::Node* createModel(const std::string& shader, const std::string& textureFile
             osg::Uniform* coeff = new osg::Uniform("coeff",osg::Vec4(1.0,-1.0f,-1.0f,1.0f));
             coeff->setUpdateCallback(new UniformVarying);
             stateset->addUniform(coeff);
+            stateset->setDataVariance(osg::Object::DYNAMIC);
         }
         else if (shader=="matrix")
         {