diff --git a/cmake/AwsCFlags.cmake b/cmake/AwsCFlags.cmake
index 0f597d7..1359b8b 100644
--- a/cmake/AwsCFlags.cmake
+++ b/cmake/AwsCFlags.cmake
@@ -35,15 +35,6 @@ function(aws_set_common_properties target)
         # /volatile:iso relaxes some implicit memory barriers that MSVC normally applies for volatile accesses
         # Since we want to be compatible with user builds using /volatile:iso, use it for the tests.
         list(APPEND AWS_C_FLAGS /volatile:iso)
-        
-        string(TOUPPER "${CMAKE_BUILD_TYPE}" _CMAKE_BUILD_TYPE)
-        if(STATIC_CRT)
-            string(REPLACE "/MD" "/MT" _FLAGS "${CMAKE_C_FLAGS_${_CMAKE_BUILD_TYPE}}")
-        else()
-            string(REPLACE "/MT" "/MD" _FLAGS "${CMAKE_C_FLAGS_${_CMAKE_BUILD_TYPE}}")
-        endif()
-        string(REPLACE " " ";" _FLAGS "${_FLAGS}")
-        list(APPEND AWS_C_FLAGS "${_FLAGS}")
 
     else()
         list(APPEND AWS_C_FLAGS -Wall -Werror -Wstrict-prototypes)