diff --git a/CMakeLists.txt b/CMakeLists.txt
index 63384bf6..674fbffb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -158,8 +158,8 @@ endif(HAVE_CLOCK_GETTIME)
 
 SET(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "add a postfix, usually d on windows")
 SET(CMAKE_RELEASE_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")
-SET(CMAKE_RELWITHDEBINFO_POSTFIX "rd" CACHE STRING "add a postfix, usually empty on windows")
-SET(CMAKE_MINSIZEREL_POSTFIX "s" CACHE STRING "add a postfix, usually empty on windows")
+SET(CMAKE_RELWITHDEBINFO_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")
+SET(CMAKE_MINSIZEREL_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows")
 
 # isnan might not be real symbol, so can't check using function_exists
 check_cxx_source_compiles(