diff --git a/src/gui/vulkan/qvulkanwindow.cpp b/src/gui/vulkan/qvulkanwindow.cpp
index 32a1d767482..c57f3bf3724 100644
--- a/src/gui/vulkan/qvulkanwindow.cpp
+++ b/src/gui/vulkan/qvulkanwindow.cpp
@@ -1330,6 +1330,7 @@ bool QVulkanWindowPrivate::createTransientImage(VkFormat format,
     VkMemoryRequirements memReq;
     VkResult err;
 
+    Q_ASSERT(count > 0);
     for (int i = 0; i < count; ++i) {
         VkImageCreateInfo imgInfo;
         memset(&imgInfo, 0, sizeof(imgInfo));