diff --git a/Modules/UseQt4.cmake b/Modules/UseQt4.cmake
index aa036b7..24932c9 100644
--- a/Modules/UseQt4.cmake
+++ b/Modules/UseQt4.cmake
@@ -22,12 +22,12 @@
 #  License text for the above reference.)
 
 add_definitions(${QT_DEFINITIONS})
-set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG QT_DEBUG)
-set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELEASE QT_NO_DEBUG)
-set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_RELWITHDEBINFO QT_NO_DEBUG)
-set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_MINSIZEREL QT_NO_DEBUG)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:Debug>:QT_DEBUG>)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:Release>:QT_NO_DEBUG>)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:RelWithDebInfo>:QT_NO_DEBUG>)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:MinSizeRel>:QT_NO_DEBUG>)
 if(NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
-  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS QT_NO_DEBUG)
+  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:>:QT_NO_DEBUG>)
 endif()
 
 if(QT_INCLUDE_DIRS_NO_SYSTEM)