diff --git a/include/util.h b/include/util.h
index 0c8843ab..abe2b62d 100644
--- a/include/util.h
+++ b/include/util.h
@@ -64,4 +64,6 @@ static inline s32 Max(s32 a, s32 b)
     b = temp;               \
 }
 
+#define GET_FLAG(FLAG, BIT) ((bool8) (((FLAG) & (BIT)) ? TRUE : FALSE))
+
 #endif //PMDSKY_UTIL_H
diff --git a/src/moves_3.c b/src/moves_3.c
index 26f34467..42c4ea99 100644
--- a/src/moves_3.c
+++ b/src/moves_3.c
@@ -64,8 +64,6 @@ u8 *GetMoveMessageFromId(s32 move_id)
     return StringFromId((u16)(DUNGEON_MOVE_TABLES.moves->moves[move_id].message_string_idx + MESSAGE_ID));
 }
 
-#define GET_BIT(BYTE, N) ((u8)(BYTE & (1 << N) ? 1 : 0))
-
 s32 GetNbMoves(struct moves *moves)
 {
     s32 index;
@@ -81,7 +79,7 @@ s32 GetNbMoves(struct moves *moves)
         // fake
         u8 flag = *(u8*)((u32)moves + (index * 6));
 
-        if(GET_BIT(flag, 0))
+        if(GET_FLAG(flag, MOVE_FLAG_EXISTS))
             num_moves++;
         
     }
diff --git a/src/overlay_31_02383478.c b/src/overlay_31_02383478.c
index 35ceea32..f228f174 100644
--- a/src/overlay_31_02383478.c
+++ b/src/overlay_31_02383478.c
@@ -14,8 +14,6 @@ extern u8* strcpy(u8* dest, const u8* src);
 extern void sub_0200D894(struct item*);
 extern void ov10_022BD394(char*, s32, u32, u32);
 
-#define GET_BIT(BYTE, N) ((u8)(BYTE & (1 << N) ? 1 : 0))
-
 char* ov31_02383478(char* arg1, s32 arg2, u32 arg3)
 {
     u32 a = 1;
@@ -36,7 +34,7 @@ char* ov31_02383478(char* arg1, s32 arg2, u32 arg3)
         struct tile* tile = GetTile(x, y);
         struct item* item = GetItemInfo(tile->object);
 
-        if (GET_BIT(item->flags, 0)) {
+        if (GET_FLAG(item->flags, ITEM_FLAG_EXISTS)) {
             MaybeGetFormattedItemName(arg1, item, &OVERLAY31_UNKNOWN_STRUCT__NA_2389EF0, a, 1);
             OVERLAY31_UNKNOWN_POINTER__NA_238A26C->field_0x1277 = 0;
         } else {
@@ -44,7 +42,7 @@ char* ov31_02383478(char* arg1, s32 arg2, u32 arg3)
             OVERLAY31_UNKNOWN_POINTER__NA_238A26C->field_0x1277 = 3;
         }
     } else {
-        if (GET_BIT(BAG_ITEMS_PTR_MIRROR->bag_items->bag_items[arg2].flags, 0) &&
+        if (GET_FLAG(BAG_ITEMS_PTR_MIRROR->bag_items->bag_items[arg2].flags, ITEM_FLAG_EXISTS) &&
             BAG_ITEMS_PTR_MIRROR->bag_items->bag_items[arg2].held_by) {
             u32 r1 = (BAG_ITEMS_PTR_MIRROR->bag_items->bag_items[arg2].held_by - 1);
             if (EntityIsValidOverlay31(DUNGEON_PTR[0]->monster_slots.party_members[r1]) == 0) {