diff --git a/tests/src/QZXingTests/QZXingTests.pro b/tests/src/QZXingTests/QZXingTests.pro
index 1568a03..aca9d39 100644
--- a/tests/src/QZXingTests/QZXingTests.pro
+++ b/tests/src/QZXingTests/QZXingTests.pro
@@ -2,6 +2,7 @@ QT += core
 QT -= gui
 
 CONFIG += gnu++11
+QMAKE_CXXFLAGS += -std=gnu++11
 
 TARGET = QZXingTests
 CONFIG += console