diff --git a/src/Magnum/Platform/WindowlessWglApplication.cpp b/src/Magnum/Platform/WindowlessWglApplication.cpp
index 9f3ed7fde..dfea35899 100644
--- a/src/Magnum/Platform/WindowlessWglApplication.cpp
+++ b/src/Magnum/Platform/WindowlessWglApplication.cpp
@@ -41,6 +41,7 @@
 #define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
 #define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
 #define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
+#define WGL_CONTEXT_ES2_PROFILE_BIT_EXT 0x00000004
 #endif
 
 namespace Magnum { namespace Platform {