diff --git a/examples/imgui/main.cpp b/examples/imgui/main.cpp
index 572516df..b0769c97 100644
--- a/examples/imgui/main.cpp
+++ b/examples/imgui/main.cpp
@@ -403,7 +403,6 @@ public:
 		}
 
 		// Index buffer
-		VkDeviceSize indexSize = imDrawData->TotalIdxCount * sizeof(ImDrawIdx);
 		if ((indexBuffer.buffer == VK_NULL_HANDLE) || (indexCount < imDrawData->TotalIdxCount)) {
 			indexBuffer.unmap();
 			indexBuffer.destroy();