diff --git a/examples/common/OpenGLWidget.h b/examples/common/OpenGLWidget.h
index a0150556..1bbbc1e4 100644
--- a/examples/common/OpenGLWidget.h
+++ b/examples/common/OpenGLWidget.h
@@ -71,7 +71,7 @@ public:
 		// The GL_ARRAY_BUFFER will contain the list of vertex positions
 		glGenBuffers(1, &(meshData.vertexBuffer));
 		glBindBuffer(GL_ARRAY_BUFFER, meshData.vertexBuffer);
-		glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(Vertex< DataType >), vecVertices.data(), GL_STATIC_DRAW);
+		glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(PolyVox::Vertex< DataType >), vecVertices.data(), GL_STATIC_DRAW);
 
 		// and GL_ELEMENT_ARRAY_BUFFER will contain the indices
 		glGenBuffers(1, &(meshData.indexBuffer));
@@ -80,20 +80,20 @@ public:
 
 		// Every surface extractor outputs valid positions for the vertices, so tell OpenGL how these are laid out
 		glEnableVertexAttribArray(0); // Attrib '0' is the vertex positions
-		glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex< DataType >), (GLvoid*)(offsetof(Vertex< DataType >, position))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
+		glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(PolyVox::Vertex< DataType >), (GLvoid*)(offsetof(PolyVox::Vertex< DataType >, position))); //take the first 3 floats from every sizeof(decltype(vecVertices)::value_type)
 
 		// Some surface extractors also generate normals, so tell OpenGL how these are laid out. If a surface extractor
 		// does not generate normals then nonsense values are written into the buffer here and sghould be ignored by the
 		// shader. This is mostly just to simplify this example code - in a real application you will know whether your
 		// chosen surface extractor generates normals and can skip uploading them if not.
 		glEnableVertexAttribArray(1); // Attrib '1' is the vertex normals.
-		glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex< DataType >), (GLvoid*)(offsetof(Vertex< DataType >, normal)));
+		glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(PolyVox::Vertex< DataType >), (GLvoid*)(offsetof(PolyVox::Vertex< DataType >, normal)));
 
 		// Finally a surface extractor will probably output additional data. This is highly application dependant. For this example code 
 		// we're just uploading it as a set of bytes which we can read individually, but real code will want to do something specialised here.
 		glEnableVertexAttribArray(2); //We're talking about shader attribute '2'
 		GLint size = (std::min)(sizeof(DataType), size_t(4)); // Can't upload more that 4 components (vec4 is GLSL's biggest type)
-		glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(Vertex< DataType >), (GLvoid*)(offsetof(Vertex< DataType >, data)));
+		glVertexAttribIPointer(2, size, GL_UNSIGNED_BYTE, sizeof(PolyVox::Vertex< DataType >), (GLvoid*)(offsetof(PolyVox::Vertex< DataType >, data)));
 
 		// We're done uploading and can now unbind.
 		glBindVertexArray(0);