diff --git a/examples/vulkan_example/imgui_impl_glfw_vulkan.h b/examples/vulkan_example/imgui_impl_glfw_vulkan.h
index 766a95954..54918d34a 100644
--- a/examples/vulkan_example/imgui_impl_glfw_vulkan.h
+++ b/examples/vulkan_example/imgui_impl_glfw_vulkan.h
@@ -10,6 +10,8 @@
 
 struct GLFWwindow;
 
+#include <vulkan/vulkan.h>
+
 #define IMGUI_VK_QUEUED_FRAMES 2
 
 struct ImGui_ImplGlfwVulkan_Init_Data