Initialize VkDesciptorSet to VK_NULL_HANDLE
diff --git a/layers/draw_state.cpp b/layers/draw_state.cpp
index 4476119..d21dc60 100644
--- a/layers/draw_state.cpp
+++ b/layers/draw_state.cpp
@@ -244,7 +244,7 @@
static GLOBAL_CB_NODE* g_lastGlobalCB = NULL;
static PIPELINE_NODE* g_lastBoundPipeline = NULL;
static uint64_t g_lastBoundDynamicState[VK_NUM_STATE_BIND_POINT] = {0};
-static VkDescriptorSet g_lastBoundDescriptorSet = VkDescriptorSet(0);
+static VkDescriptorSet g_lastBoundDescriptorSet = VK_NULL_HANDLE;
#define MAX_BINDING 0xFFFFFFFF // Default vtxBinding value in CB Node to identify if no vtxBinding set
//static DYNAMIC_STATE_NODE* g_pDynamicStateHead[VK_NUM_STATE_BIND_POINT] = {0};