diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0beddd12..63d3a44c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -164,6 +164,8 @@ endif (CROSS_COMPILE_RPI_ARM)
 if (COMPILE_WIN32)
     set(CMAKE_C_FLAGS "/EHsc /D_WIN32 /D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR")
     set(CMAKE_CXX_FLAGS "/EHsc /D_WIN32 /D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR")
+    set(CMAKE_C_FLAGS_RELEASE "/EHsc /D_WIN32 /D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR")
+    set(CMAKE_CXX_FLAGS_RELEASE "/EHsc /D_WIN32 /D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR")
 endif (COMPILE_WIN32)
 
 set(CMAKE_INSTALL_PREFIX "/usr/local")