diff --git a/library/library.pro b/library/library.pro
index 19bb852..045b98f 100644
--- a/library/library.pro
+++ b/library/library.pro
@@ -2,11 +2,12 @@ TEMPLATE = lib
 TARGET = mobility_calc
 # CONFIG += staticlib
 
-QMAKE_CXXFLAGS += -std=c++11 -g -O0
+QMAKE_CXXFLAGS += -std=c++17 -g -O0
 
 INCLUDEPATH += $$_PRO_FILE_PWD_/include
-INCLUDEPATH += $$_PRO_FILE_PWD_/include/rapidjson
 INCLUDEPATH += $$_PRO_FILE_PWD_/include/mobilisis
+INCLUDEPATH += $$_PRO_FILE_PWD_/include/rapidjson
+
 
 SOURCES += \
     src/calculator_functions.cpp \