diff --git a/accommodation/accommodation.pro b/accommodation/accommodation.pro
index 3c9fee7..5fa3c85 100644
--- a/accommodation/accommodation.pro
+++ b/accommodation/accommodation.pro
@@ -31,6 +31,8 @@ HEADERS += accommodation.h\
 unix {
     target.path = /usr/lib
     INSTALLS += target
+    QMAKE_CXXFLAGS += -std=c++11
+    QMAKE_CXXFLAGS += -Wno-unknown-pragmas
 }
 
 win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../core/release/ -lcore
diff --git a/application/application.pro b/application/application.pro
index a1e2144..bef3e3f 100644
--- a/application/application.pro
+++ b/application/application.pro
@@ -25,6 +25,12 @@ HEADERS  += mainwindow.h
 
 FORMS    += mainwindow.ui
 
+
+unix {
+    QMAKE_CXXFLAGS += -std=c++11
+    QMAKE_CXXFLAGS += -Wno-unknown-pragmas
+}
+
 win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../core/release/ -lcore
 else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../core/debug/ -lcore
 else:unix: LIBS += -L$$OUT_PWD/../core/ -lcore
diff --git a/core/core.pro b/core/core.pro
index b4b03d4..94cfa39 100644
--- a/core/core.pro
+++ b/core/core.pro
@@ -41,6 +41,8 @@ HEADERS += core.h\
 unix {
     target.path = /usr/lib
     INSTALLS += target
+    QMAKE_CXXFLAGS += -std=c++11
+    QMAKE_CXXFLAGS += -Wno-unknown-pragmas
 }
 
 ODB_FILES = core/data/core-data.h