diff --git a/code/base/test_base.cpp b/code/base/test_base.cpp
index cff804e..1faa31f 100644
--- a/code/base/test_base.cpp
+++ b/code/base/test_base.cpp
@@ -465,7 +465,7 @@ public:
 		unsigned int l = sizeof(SANE_Int);
 		ret = helper_->io_control(IO_CTRL_CODE_GET_SPEED_MODE, &num, &l);
 		int save_num = 0;
-		wchar_t buf[128];
+		
 		if (fw_ == 3 || fw_ == 4 && num > 0 && num < 6)
 		{
 			if (num == 1)save_num = 40;
@@ -477,19 +477,27 @@ public:
 		else
 			save_num = num;
 		
+		wchar_t* infocat = NULL;
 		if (num != speed_mode)
 		{
+			wchar_t buf[30] = L"设置速度模式失败...现在速度是:";
 			type = false;
-			wcscat(buf, L"设置速度模式失败...现在速度是:");
-			wcscat(buf, (wchar_t *)save_num);
+			wchar_t c[4];
+			wsprintfW(c, L"%dppm", save_num);
+		
+			wcscat(buf, c);
+			infocat = buf;
 		}
 		else
 		{
+			wchar_t buf[30] = L"设置速度模式成功...现在速度是:";
 			type = true;
-			wcscat(buf, L"设置速度模式成功...现在速度是:");
-			wcscat(buf, (wchar_t*)save_num);
+			wchar_t c[6];
+			wsprintfW(c,L"%dppm", save_num);
+			wcscat(buf, c);
+			infocat = buf;
 		}
-		helper_->test_callback((wchar_t*)data, ui_helper::TEST_EVENT_RESULT, (void*)buf, type);
+		helper_->test_callback((wchar_t*)data, ui_helper::TEST_EVENT_RESULT, (void*)infocat, type);
 		return SCANNER_ERR_OK;
 	}
 	/* 放置校正纸 */