diff --git a/CMakeLists.txt b/CMakeLists.txt
index c2f9fca03..30e7361f8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -430,11 +430,8 @@ ENDIF("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
 # Installation stuff
 
 SET(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "add a postfix, usually d on windows")
-IF(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} GREATER 4)
-  ADD_DEFINITIONS(-DOSG_DEBUG_POSTFIX="${CMAKE_DEBUG_POSTFIX}")
-ELSE(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} GREATER 4)
-  ADD_DEFINITIONS(-DOSG_DEBUG_POSTFIX='\"${CMAKE_DEBUG_POSTFIX}\"')
-ENDIF(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} GREATER 4)
+ADD_DEFINITIONS(-DOSG_DEBUG_POSTFIX=${CMAKE_DEBUG_POSTFIX})
+
 IF(UNIX AND NOT WIN32 AND NOT APPLE)
   IF(CMAKE_BUILD_TYPE STREQUAL "Debug")
     ADD_DEFINITIONS("-D_DEBUG")