diff --git a/src/win32/platform.h b/src/win32/platform.h
index 08a15183..4ae50979 100644
--- a/src/win32/platform.h
+++ b/src/win32/platform.h
@@ -232,6 +232,7 @@ typedef struct _GLFWcontextWGL
     GLboolean                           has_WGL_ARB_create_context;
     GLboolean                           has_WGL_ARB_create_context_profile;
     GLboolean                           has_WGL_EXT_create_context_es2_profile;
+    GLboolean                           has_WGL_EXT_create_context_robustness;
 } _GLFWcontextWGL;