diff --git a/src/core/lv_disp.c b/src/core/lv_disp.c
index d2251ade38..e46dc09777 100644
--- a/src/core/lv_disp.c
+++ b/src/core/lv_disp.c
@@ -399,8 +399,7 @@ void lv_disp_set_draw_buffers(lv_disp_t * disp, void * buf1, void * buf2, uint32
     disp->render_mode = render_mode;
 }
 
-void lv_disp_set_flush_cb(lv_disp_t * disp, void (*flush_cb)(struct _lv_disp_t * disp, const lv_area_t * area,
-                                                             lv_color_t * color_p))
+void lv_disp_set_flush_cb(lv_disp_t * disp, lv_disp_flush_cb_t flush_cb)
 {
     if(disp == NULL) disp = lv_disp_get_default();
     if(disp == NULL) return;
diff --git a/src/core/lv_disp.h b/src/core/lv_disp.h
index 2564c6dc2d..094ed8ecee 100644
--- a/src/core/lv_disp.h
+++ b/src/core/lv_disp.h
@@ -84,6 +84,9 @@ typedef enum {
     LV_SCR_LOAD_ANIM_OUT_BOTTOM,
 } lv_scr_load_anim_t;
 
+
+typedef void (*lv_disp_flush_cb_t)(struct _lv_disp_t * disp, const lv_area_t * area, lv_color_t * px_map);
+
 /**********************
  * GLOBAL PROTOTYPES
  **********************/
@@ -247,8 +250,7 @@ void lv_disp_set_draw_buffers(lv_disp_t * disp, void * buf1, void * buf2, uint32
  * @param disp      pointer to a display
  * @param flush_cb  the flush callback (`px_map` contains the rendered image as raw pixel map and it should be copied to `area` on the display)
  */
-void lv_disp_set_flush_cb(lv_disp_t * disp, void (*flush_cb)(struct _lv_disp_t * disp, const lv_area_t * area,
-                                                             lv_color_t * px_map));
+void lv_disp_set_flush_cb(lv_disp_t * disp, lv_disp_flush_cb_t flush_cb);
 /**
  * Set the color format of the display.
  * If set to other than `LV_COLOR_FORMAT_NATIVE` the draw_ctx's `buffer_convert` function will be used
diff --git a/src/core/lv_indev.c b/src/core/lv_indev.c
index e8f207d583..30a9e87245 100644
--- a/src/core/lv_indev.c
+++ b/src/core/lv_indev.c
@@ -249,7 +249,7 @@ void lv_indev_set_type(lv_indev_t * indev, lv_indev_type_t indev_type)
     indev->reset_query = 1;
 }
 
-void lv_indev_set_read_cb(lv_indev_t * indev,  void (*read_cb)(struct _lv_indev_t * indev, lv_indev_data_t * data))
+void lv_indev_set_read_cb(lv_indev_t * indev,  lv_indev_read_cb_t read_cb)
 {
     if(indev == NULL) return;
 
diff --git a/src/core/lv_indev.h b/src/core/lv_indev.h
index f66a8480cd..fdc121c80d 100644
--- a/src/core/lv_indev.h
+++ b/src/core/lv_indev.h
@@ -57,6 +57,7 @@ typedef struct {
     bool continue_reading;  /**< If set to true, the read callback is invoked again*/
 } lv_indev_data_t;
 
+typedef void (*lv_indev_read_cb_t)(struct _lv_indev_t * indev, lv_indev_data_t * data);
 
 /**********************
  * GLOBAL PROTOTYPES
@@ -112,7 +113,7 @@ lv_indev_t * lv_indev_get_act(void);
  */
 void lv_indev_set_type(lv_indev_t * indev, lv_indev_type_t indev_type);
 
-void lv_indev_set_read_cb(lv_indev_t * indev,  void (*read_cb)(struct _lv_indev_t * indev, lv_indev_data_t * data));
+void lv_indev_set_read_cb(lv_indev_t * indev,  lv_indev_read_cb_t read_cb);
 
 void lv_indev_set_user_data(lv_indev_t * indev, void * user_data);