diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 754487eef..7d1039a28 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -31,6 +31,7 @@ else (QT5)
     endif (DBUS)
     find_package(Qt4 4.8.0 COMPONENTS ${QBT_QT_COMPONENTS} REQUIRED)
     include(${QT_USE_FILE})
+    add_definitions(-DQStringLiteral=QLatin1String)
 endif (QT5)
 
 set(CMAKE_AUTOMOC True)