diff --git a/opengl/include/EGL/eglext_angle.h b/opengl/include/EGL/eglext_angle.h
index 1f1bcb3..e753e0d 100644
--- a/opengl/include/EGL/eglext_angle.h
+++ b/opengl/include/EGL/eglext_angle.h
@@ -186,6 +186,26 @@
 #define EGL_EXTENSIONS_ENABLED_ANGLE 0x345F
 #endif /* EGL_ANGLE_create_context_extensions_enabled */
 
+#ifndef EGL_ANGLE_feature_control
+#define EGL_ANGLE_feature_control 1
+#define EGL_FEATURE_NAME_ANGLE 0x3460
+#define EGL_FEATURE_CATEGORY_ANGLE 0x3461
+#define EGL_FEATURE_DESCRIPTION_ANGLE 0x3462
+#define EGL_FEATURE_BUG_ANGLE 0x3463
+#define EGL_FEATURE_STATUS_ANGLE 0x3464
+#define EGL_FEATURE_COUNT_ANGLE 0x3465
+#define EGL_FEATURE_OVERRIDES_ENABLED_ANGLE 0x3466
+#define EGL_FEATURE_OVERRIDES_DISABLED_ANGLE 0x3467
+#define EGL_FEATURE_CONDITION_ANGLE 0x3468
+#define EGL_FEATURE_ALL_DISABLED_ANGLE 0x3469
+typedef const char *(EGLAPIENTRYP PFNEGLQUERYSTRINGIANGLEPROC) (EGLDisplay dpy, EGLint name, EGLint index);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYDISPLAYATTRIBANGLEPROC) (EGLDisplay dpy, EGLint attribute, EGLAttrib *value);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI const char *EGLAPIENTRY eglQueryStringiANGLE(EGLDisplay dpy, EGLint name, EGLint index);
+EGLAPI EGLBoolean EGLAPIENTRY eglQueryDisplayAttribANGLE(EGLDisplay dpy, EGLint attribute, EGLAttrib *value);
+#endif
+#endif /* EGL_ANGLE_feature_control */
+
 // clang-format on
 
 #endif // INCLUDE_EGL_EGLEXT_ANGLE_