diff --git a/src/lv_core/lv_group.h b/src/lv_core/lv_group.h
index cfba02182..3a0b38da7 100644
--- a/src/lv_core/lv_group.h
+++ b/src/lv_core/lv_group.h
@@ -73,10 +73,11 @@ typedef struct _lv_group_t
     uint8_t wrap            :1;             /*1: Focus next/prev can wrap at end of list. 0: Focus next/prev stops at end of list.*/
 } lv_group_t;
 
-typedef enum _lv_group_refocus_policy_t {
+enum _lv_group_refocus_policy_t {
     LV_GROUP_REFOCUS_POLICY_NEXT = 0,
     LV_GROUP_REFOCUS_POLICY_PREV = 1
-} lv_group_refocus_policy_t;
+};
+typedef uint8_t lv_group_refocus_policy_t;
 
 /**********************
  * GLOBAL PROTOTYPES
diff --git a/src/lv_core/lv_obj.h b/src/lv_core/lv_obj.h
index 637087e1b..7918e10dc 100644
--- a/src/lv_core/lv_obj.h
+++ b/src/lv_core/lv_obj.h
@@ -72,7 +72,7 @@ enum
 typedef uint8_t lv_res_t;
 
 
-typedef enum {
+enum {
     LV_EVENT_PRESSED,           /*The object has been pressed*/
     LV_EVENT_PRESSING,          /*The object is being pressed (called continuously while pressing)*/
     LV_EVENT_PRESS_LOST,        /*Still pressing but slid from the objects*/
@@ -94,7 +94,8 @@ typedef enum {
     LV_EVENT_REFRESH,
     LV_EVENT_APPLY,         /*"Ok", "Apply" or similar specific button has clicked*/
     LV_EVENT_CANCEL,        /*"Close", "Cancel" or similar specific button has clicked*/
-}lv_event_t;
+};
+typedef uint8_t lv_event_t;
 
 typedef void (*lv_event_cb_t)(struct _lv_obj_t * obj, lv_event_t event);
 
diff --git a/src/lv_objx/lv_cont.h b/src/lv_objx/lv_cont.h
index 0dade26db..0f06e5504 100644
--- a/src/lv_objx/lv_cont.h
+++ b/src/lv_objx/lv_cont.h
@@ -48,12 +48,13 @@ enum
 typedef uint8_t lv_layout_t;
 
 
-typedef enum {
+enum {
     LV_FIT_NONE,         /*Do not change the size automatically*/
     LV_FIT_TIGHT,        /*Involve the children*/
     LV_FIT_FLOOD,        /*Align the size to the parent's edge*/
     LV_FIT_FILL,         /*Align the size to the parent's edge first but if there is an object out of it then involve it*/
-}lv_fit_t;
+};
+typedef uint8_t lv_fit_t;
 
 typedef struct
 {