diff --git a/demos/flex_layout/lv_demo_flex_layout_view_child_node.c b/demos/flex_layout/lv_demo_flex_layout_view_child_node.c
index 5f54c86e5..b4dee3d11 100644
--- a/demos/flex_layout/lv_demo_flex_layout_view_child_node.c
+++ b/demos/flex_layout/lv_demo_flex_layout_view_child_node.c
@@ -50,7 +50,7 @@ lv_obj_t * obj_child_node_create(lv_obj_t * par, view_t * ui)
     lv_obj_add_style(obj, &ui->obj_checked_style, LV_STATE_CHECKED);
 
     lv_obj_t * label = lv_label_create(obj);
-    lv_label_set_text_fmt(label, "%d", cnt);
+    lv_label_set_text_fmt(label, "%" LV_PRIu32, cnt);
     lv_obj_add_flag(label, LV_OBJ_FLAG_IGNORE_LAYOUT | LV_OBJ_FLAG_FLOATING);
     lv_obj_center(label);
 
diff --git a/demos/stress/lv_demo_stress.c b/demos/stress/lv_demo_stress.c
index cf699a36c..7f20c2e4f 100644
--- a/demos/stress/lv_demo_stress.c
+++ b/demos/stress/lv_demo_stress.c
@@ -79,7 +79,7 @@ static void obj_test_task_cb(lv_timer_t * tmr)
 
                 if(mem_free_start == 0)  mem_free_start = mon.free_size;
 
-                LV_LOG_USER("mem leak since start: %d, frag: %3d %%",  mem_free_start - mon.free_size, mon.frag_pct);
+                LV_LOG_USER("mem leak since start: %" LV_PRIu32 ", frag: %3d %%", mem_free_start - mon.free_size, mon.frag_pct);
             }
             break;
         case 0:
diff --git a/src/draw/lv_draw.c b/src/draw/lv_draw.c
index dc9b40d2c..f2e48f099 100644
--- a/src/draw/lv_draw.c
+++ b/src/draw/lv_draw.c
@@ -186,7 +186,7 @@ bool lv_draw_dispatch_layer(struct _lv_display_t * disp, lv_layer_t * layer)
                     uint32_t layer_size_byte = h * lv_draw_buf_width_to_stride(w, layer_drawn->color_format);
 
                     _draw_info.used_memory_for_layers_kb -= layer_size_byte < 1024 ? 1 : layer_size_byte >> 10;
-                    LV_LOG_INFO("Layer memory used: %d kB\n", _draw_info.used_memory_for_layers_kb);
+                    LV_LOG_INFO("Layer memory used: %" LV_PRIu32 " kB\n", _draw_info.used_memory_for_layers_kb);
                     lv_draw_buf_free(layer_drawn->buf_unaligned);
                 }
 
@@ -365,7 +365,7 @@ void * lv_draw_layer_alloc_buf(lv_layer_t * layer)
 
         uint32_t kb = layer_size_byte < 1024 ? 1 : layer_size_byte >> 10;
         _draw_info.used_memory_for_layers_kb += kb;
-        LV_LOG_INFO("Layer memory used: %d kB\n", _draw_info.used_memory_for_layers_kb);
+        LV_LOG_INFO("Layer memory used: %" LV_PRIu32 " kB\n", _draw_info.used_memory_for_layers_kb);
 
         if(lv_color_format_has_alpha(layer->color_format)) {
             lv_area_t a;