diff --git a/opengl/specs/README b/opengl/specs/README
index 16b278f..af3f165 100644
--- a/opengl/specs/README
+++ b/opengl/specs/README
@@ -10,4 +10,7 @@
 0x3141               (unused)
 0x3142               EGL_ANDROID_recordable
 0x3143               EGL_VERSION_HW_ANDROID (internal use)
-0x3144 - 0x314F      (unused)
+0x3144               EGL_SYNC_ANDROID_FENCE_ANDROID
+0x3145               EGL_SYNC_FENCE_FD_ANDROID
+0x3146               EGL_SYNC_ANDROID_FENCE_SIGNALED_ANDROID
+0x3147 - 0x314F      (unused)