diff --git a/opengl/specs/README b/opengl/specs/README
index eb86869..f4de1b3 100644
--- a/opengl/specs/README
+++ b/opengl/specs/README
@@ -14,4 +14,8 @@
 0x3145               EGL_SYNC_NATIVE_FENCE_FD_ANDROID (EGL_ANDROID_native_fence_sync)
 0x3146               EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID (EGL_ANDROID_native_fence_sync)
 0x3147               EGL_FRAMEBUFFER_TARGET_ANDROID (EGL_ANDROID_framebuffer_target)
-0x3148 - 0x314F      (unused)
+0x3148               EGL_IMAGE_CROP_LEFT_ANDROID (EGL_ANDROID_image_crop)
+0x3149               EGL_IMAGE_CROP_TOP_ANDROID (EGL_ANDROID_image_crop)
+0x314A               EGL_IMAGE_CROP_RIGHT_ANDROID (EGL_ANDROID_image_crop)
+0x314B               EGL_IMAGE_CROP_BOTTOM_ANDROID (EGL_ANDROID_image_crop)
+0x314C - 0x314F      (unused)