diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index 3a95f5c106b..273443034c5 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -766,7 +766,7 @@ static void update_attribute_element_offset(Mesh *mesh, vector<float>& attr_floa
 			VoxelAttribute *voxel_data = mattr->data_voxel();
 			offset = voxel_data->slot;
 		}
-		if(mattr->element == ATTR_ELEMENT_CORNER_BYTE) {
+		else if(mattr->element == ATTR_ELEMENT_CORNER_BYTE) {
 			uchar4 *data = mattr->data_uchar4();
 			offset = attr_uchar4.size();