diff --git a/lib/win/ApplicationWin32.cpp b/lib/win/ApplicationWin32.cpp
index b3400eb..a04d538 100644
--- a/lib/win/ApplicationWin32.cpp
+++ b/lib/win/ApplicationWin32.cpp
@@ -78,7 +78,9 @@ class ApplicationWin32 final : public IApplication
     bool m_singleInstance;
 
     Boo3DAppContext m_3dCtx;
+#if BOO_HAS_VULKAN
     PFN_vkGetInstanceProcAddr m_getVkProc = nullptr;
+#endif
 
     void _deletedWindow(IWindow* window)
     {
@@ -423,7 +425,12 @@ public:
             return m_mwret;
         }
 
+#if BOO_HAS_VULKAN
         IWindow* window = _WindowWin32New(title, m_3dCtx, m_getVkProc, sampleCount);
+#else
+        IWindow* window = _WindowWin32New(title, m_3dCtx, nullptr, sampleCount);
+#endif
+
         HWND hwnd = HWND(window->getPlatformHandle());
         m_allWindows[hwnd] = window;
         return window;
diff --git a/lib/win/WindowWin32.cpp b/lib/win/WindowWin32.cpp
index 70d412c..0d316e9 100644
--- a/lib/win/WindowWin32.cpp
+++ b/lib/win/WindowWin32.cpp
@@ -972,6 +972,7 @@ public:
                                                       this, m_hwnd, b3dCtx, sampleCount));
             return;
         }
+#if BOO_HAS_VULKAN
         else if (b3dCtx.m_vulkanDxFactory)
         {
             m_gfxCtx.reset(new GraphicsContextWin32Vulkan(this, wndInstance, m_hwnd, &g_VulkanContext,
@@ -979,6 +980,7 @@ public:
             if (m_gfxCtx->initializeContext(vulkanHandle))
                 return;
         }
+#endif
         m_gfxCtx.reset(new GraphicsContextWin32D3D(api, this, m_hwnd, b3dCtx, sampleCount));
     }