diff --git a/sane/DlgCfgMgr.cpp b/sane/DlgCfgMgr.cpp
index 7a9ce52..cc61504 100644
--- a/sane/DlgCfgMgr.cpp
+++ b/sane/DlgCfgMgr.cpp
@@ -119,7 +119,14 @@ void dlg_cfg_mgr::handle_notify(UINT id, LPNMHDR pnhdr)
 				
 				if (cfg_)
 				{
-					cfg_->rename_scheme(local_trans::u2a(label_.c_str(), CP_UTF8).c_str(), local_trans::u2a(pdisp->item.pszText, CP_UTF8).c_str());
+					if (!cfg_->rename_scheme(local_trans::u2a(label_.c_str(), CP_UTF8).c_str(), local_trans::u2a(pdisp->item.pszText, CP_UTF8).c_str()))
+					{
+						std::wstring input(pdisp->item.pszText);
+						
+						input += L" " + local_trans::lang_trans_between_hz936(CONST_STRING_ALREADY_EXISTS);
+						::MessageBoxW(hwnd(), input.c_str(), local_trans::lang_trans_between_hz936(CONST_STRING_RE_INPUT).c_str(), MB_OK | MB_ICONINFORMATION);
+						dlg_base::list_set_item_text(get_item(IDC_LIST1), pdisp->item.iItem, 0, label_.c_str());
+					}
 				}
 			}
 		}
diff --git a/sane/DlgPage.cpp b/sane/DlgPage.cpp
index c4229a0..9fb1780 100644
--- a/sane/DlgPage.cpp
+++ b/sane/DlgPage.cpp
@@ -224,6 +224,17 @@ void dlg_base::list_get_selected_items(HWND list_wnd, std::vector<int>& sels)
 			sels.push_back(i);
 	}
 }
+int dlg_base::list_set_item_text(HWND list_wnd, int item, int sub_item, const wchar_t* text)
+{
+	LV_ITEMW	lvi = { 0 };
+
+	lvi.iItem = item;
+	lvi.iSubItem = sub_item;
+	lvi.pszText = (LPWSTR)text;
+	lvi.mask = LVIF_TEXT;
+
+	return ListView_SetItem(list_wnd, &lvi) ? 0 : 1;
+}
 
 BOOL dlg_base::handle_message(UINT msg, WPARAM wp, LPARAM lp)
 {
diff --git a/sane/DlgPage.h b/sane/DlgPage.h
index b32eaed..6e87f0e 100644
--- a/sane/DlgPage.h
+++ b/sane/DlgPage.h
@@ -73,6 +73,7 @@ public:
 	static int list_get_column_count(HWND list_wnd);
 	static std::wstring list_get_text(HWND list_wnd, int ind, int sub = 0);
 	static void list_get_selected_items(HWND list_wnd, std::vector<int>& sels);
+	static int list_set_item_text(HWND list_wnd, int item, int sub_item, const wchar_t* text);
 
 public:
 	void set_ui_event_notify(void(__stdcall* notify)(int, void*, void*), void* param);