diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c938a7..09c13e4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,7 +41,7 @@ if (MSVC)
             CMAKE_C_FLAGS
             CMAKE_C_FLAGS_DEBUG
             CMAKE_C_FLAGS_RELEASE
-            CMAKE_CXX_FLAGS_RELWITHDEBINFO
+            CMAKE_C_FLAGS_RELWITHDEBINFO
     )
     foreach(CompilerFlag ${CompilerFlags})
         string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")