diff --git a/examples/test_multiplot/test_multiplot.pro b/examples/test_multiplot/test_multiplot.pro
index 540bc7381c..8817125fca 100644
--- a/examples/test_multiplot/test_multiplot.pro
+++ b/examples/test_multiplot/test_multiplot.pro
@@ -3,6 +3,7 @@ SOURCES = test_multiplot.cpp
 
 # configure Qt
 CONFIG += qt
+CONFIG += c++11
 QT += core gui xml  svg
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets printsupport
 
diff --git a/lib/common.pri b/lib/common.pri
index 0a5173a55e..2811015a69 100644
--- a/lib/common.pri
+++ b/lib/common.pri
@@ -20,3 +20,5 @@ INCLUDEPATH += $$PWD
 
 QT += core gui
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets printsupport
+
+CONFIG += c++11
\ No newline at end of file