diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1969ad9..c3dab48 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -29,16 +29,18 @@ if(WIN32)
     set(BASE_RPC_SRC ${BASE_RPC_SRC} connection_win.cpp discord_register_win.cpp)
     add_library(discord-rpc ${BASE_RPC_SRC})
     if (MSVC)
-        set(CRT_FLAGS)
         if(USE_STATIC_CRT)
-            if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-                set(CRT_FLAGS /MTd)
-            else()
-                set(CRT_FLAGS /MT)
-            endif()
+            foreach(CompilerFlag
+                    CMAKE_CXX_FLAGS
+                    CMAKE_CXX_FLAGS_DEBUG
+                    CMAKE_CXX_FLAGS_RELEASE
+                    CMAKE_C_FLAGS
+                    CMAKE_C_FLAGS_DEBUG
+                    CMAKE_C_FLAGS_RELEASE)
+                string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")
+            endforeach()
         endif(USE_STATIC_CRT)
         target_compile_options(discord-rpc PRIVATE /EHsc
-            ${CRT_FLAGS}
             /Wall
             /wd4100 # unreferenced formal parameter
             /wd4514 # unreferenced inline