diff --git a/cmake/AwsCFlags.cmake b/cmake/AwsCFlags.cmake
index 249b7d5..41a31e2 100644
--- a/cmake/AwsCFlags.cmake
+++ b/cmake/AwsCFlags.cmake
@@ -38,15 +38,6 @@ function(aws_set_common_properties target)
             list(APPEND AWS_C_FLAGS /DAWS_SUPPORT_WIN7=1)
         endif()
 
-        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 -Wstrict-prototypes)