diff --git a/CMakeLists.txt b/CMakeLists.txt
index eee67fa..0b6e829 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -612,8 +612,7 @@
       ENDIF (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     ENDIF (${BUILD_ANDROID})
   ENDIF (CMAKE_COMPILER_IS_GNUCXX)
-  SET (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${CERES_CXX_FLAGS}"
-       CACHE STRING "Release mode flags to the C++ Compiler" FORCE)
+  SET (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${CERES_CXX_FLAGS}")
 ENDIF (CMAKE_BUILD_TYPE STREQUAL "Release")
 
 # After the tweaks for the compile settings, disable some warnings on MSVC.