diff --git a/src/dxvk/dxvk_constant_state.h b/src/dxvk/dxvk_constant_state.h
index b17dd9b5..222c6ee5 100644
--- a/src/dxvk/dxvk_constant_state.h
+++ b/src/dxvk/dxvk_constant_state.h
@@ -188,6 +188,7 @@ namespace dxvk {
     uint32_t          binding;
     uint32_t          fetchRate;
     VkVertexInputRate inputRate;
+    uint32_t          extent;
   };