diff --git a/include/mbedtls/aes.h b/include/mbedtls/aes.h
index a773c75..ffd6d3b 100644
--- a/include/mbedtls/aes.h
+++ b/include/mbedtls/aes.h
@@ -31,13 +31,7 @@
 #endif
 
 #include <stddef.h>
-
-#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
-#include <basetsd.h>
-typedef UINT32 uint32_t;
-#else
-#include <inttypes.h>
-#endif
+#include <stdint.h>
 
 /* padlock.c and aesni.c rely on these values! */
 #define MBEDTLS_AES_ENCRYPT     1