diff --git a/scene/gui/item_list.cpp b/scene/gui/item_list.cpp
index 634cc21cb81..805be480974 100644
--- a/scene/gui/item_list.cpp
+++ b/scene/gui/item_list.cpp
@@ -163,6 +163,7 @@ void ItemList::set_item_custom_bg_color(int p_idx, const Color &p_custom_bg_colo
 	ERR_FAIL_INDEX(p_idx, items.size());
 
 	items.write[p_idx].custom_bg = p_custom_bg_color;
+	update();
 }
 
 Color ItemList::get_item_custom_bg_color(int p_idx) const {
@@ -175,6 +176,7 @@ void ItemList::set_item_custom_fg_color(int p_idx, const Color &p_custom_fg_colo
 	ERR_FAIL_INDEX(p_idx, items.size());
 
 	items.write[p_idx].custom_fg = p_custom_fg_color;
+	update();
 }
 
 Color ItemList::get_item_custom_fg_color(int p_idx) const {