diff --git a/include/ui/egl/android_natives.h b/include/ui/egl/android_natives.h
index 0a6e4fb..79339a4 100644
--- a/include/ui/egl/android_natives.h
+++ b/include/ui/egl/android_natives.h
@@ -249,7 +249,7 @@
      * 
      * Returns 0 on success or -errno on error.
      */
-    int     (*query)(struct ANativeWindow* window,
+    int     (*query)(const struct ANativeWindow* window,
                 int what, int* value);
     
     /*