diff --git a/nanovna.h b/nanovna.h
index df7b8c6..755315c 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -334,9 +334,8 @@ int  ili9341_drawchar_size(uint8_t ch, int x, int y, uint8_t size);
 void ili9341_drawstring_size(const char *str, int x, int y, uint8_t size);
 void ili9341_drawfont(uint8_t ch, int x, int y);
 void ili9341_read_memory(int x, int y, int w, int h, int len, uint16_t* out);
-void ili9341_line(int x0, int y0, int x1, int y1);
-void show_version(void);
-void show_logo(void);
+void ili9341_read_memory_continue(int len, uint16_t* out);
+void ili9341_line(int x0, int y0, int x1, int y1, uint16_t fg);
 
 /*
  * flash.c
diff --git a/ui.c b/ui.c
index 5c568e6..55a5edd 100644
--- a/ui.c
+++ b/ui.c
@@ -305,8 +305,6 @@ void touch_wait_release(void)
   } while(status != EVT_TOUCH_RELEASED);
 }
 
-extern void ili9341_line(int, int, int, int);
-
 void
 touch_cal_exec(void)
 {