diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 51b81e60c..7ad732815 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -53,9 +53,10 @@ endif ()
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 
 # defines
+add_definitions(-DQT_DEPRECATED_WARNINGS)
 add_definitions(-DQT_NO_CAST_TO_ASCII)
-# Efficient construction for QString & QByteArray (Qt >= 4.8)
 add_definitions(-DQT_USE_QSTRINGBUILDER)
+add_definitions(-DQT_STRICT_ITERATORS)
 
 if (CMAKE_BUILD_TYPE MATCHES "Debug")
     message(STATUS "Project is built in DEBUG mode.")
diff --git a/src/src.pro b/src/src.pro
index 65b343ce5..b8e970e57 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -54,8 +54,9 @@ CONFIG(release, debug|release) {
 # VERSION DEFINES
 include(../version.pri)
 
+# Qt defines
+DEFINES += QT_DEPRECATED_WARNINGS
 DEFINES += QT_NO_CAST_TO_ASCII
-# Efficient construction for QString & QByteArray (Qt >= 4.8)
 DEFINES += QT_USE_QSTRINGBUILDER
 DEFINES += QT_STRICT_ITERATORS