diff --git a/src/xlsx/xlsx.pro b/src/xlsx/xlsx.pro
index 1449014..507d21b 100644
--- a/src/xlsx/xlsx.pro
+++ b/src/xlsx/xlsx.pro
@@ -8,7 +8,7 @@ CONFIG += build_xlsx_lib
 include(qtxlsx.pri)
 
 #Define this macro if you want to run tests, so more AIPs will get exported.
-#DEFINES += XLSX_TEST
+CONFIG(debug, debug|release):DEFINES += XLSX_TEST
 
 QMAKE_TARGET_COMPANY = "Debao Zhang"
 QMAKE_TARGET_COPYRIGHT = "Copyright (C) 2013-2014 Debao Zhang <hello@debao.me>"