diff --git a/wear_ui.h b/wear_ui.h
index 839a264..63c1b6e 100644
--- a/wear_ui.h
+++ b/wear_ui.h
@@ -79,6 +79,9 @@
     int intro_frames;
     int loop_frames;
 
+    // Number of frames per sec (default: 30) for both of intro and loop.
+    int animation_fps;
+
   private:
     Icon currentIcon;
 
@@ -86,8 +89,6 @@
 
     int current_frame;
 
-    int animation_fps;
-
     bool rtl_locale;
 
     pthread_mutex_t updateMutex;