diff --git a/util/test/demos/vk/vk_cbuffer_zoo.cpp b/util/test/demos/vk/vk_cbuffer_zoo.cpp
index acf7833c9..73ca810a4 100644
--- a/util/test/demos/vk/vk_cbuffer_zoo.cpp
+++ b/util/test/demos/vk/vk_cbuffer_zoo.cpp
@@ -744,9 +744,8 @@ float4 main() : SV_Target0
       vkh::updateDescriptorSets(
           device, {
                       vkh::WriteDescriptorSet(
-                          descset, 1, VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT,
-                          {vkh::DescriptorBufferInfo(cb.buffer, bindOffset * sizeof(Vec4f))})
-                          .next(&inlineUpdate),
+                          descset, 1, inlineUpdate,
+                          vkh::DescriptorBufferInfo(cb.buffer, bindOffset * sizeof(Vec4f))),
                   });
     }
     else
diff --git a/util/test/demos/vk/vk_helpers.h b/util/test/demos/vk/vk_helpers.h
index 7347d78b3..d1049d84b 100644
--- a/util/test/demos/vk/vk_helpers.h
+++ b/util/test/demos/vk/vk_helpers.h
@@ -912,6 +912,22 @@ struct WriteDescriptorSet : public VkWriteDescriptorSet
     this->pTexelBufferView = NULL;
   }
 
+  WriteDescriptorSet(VkDescriptorSet dstSet, uint32_t dstBinding,
+                     const VkWriteDescriptorSetInlineUniformBlockEXT &inlineWrite,
+                     const VkDescriptorBufferInfo &bufferInfo)
+  {
+    sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+    pNext = &inlineWrite;
+    this->dstSet = dstSet;
+    this->dstBinding = dstBinding;
+    this->dstArrayElement = 0;
+    this->descriptorCount = inlineWrite.dataSize;
+    this->descriptorType = VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT;
+    this->pImageInfo = NULL;
+    this->pBufferInfo = &bufferInfo;
+    this->pTexelBufferView = NULL;
+  }
+
   WriteDescriptorSet(VkDescriptorSet dstSet, uint32_t dstBinding, VkDescriptorType descriptorType,
                      const std::vector<VkDescriptorBufferInfo> &bufferInfo)
       : WriteDescriptorSet(dstSet, dstBinding, 0, descriptorType, bufferInfo)