diff --git a/include/polarssl/camellia.h b/include/polarssl/camellia.h
index 9bf5e91f5f..3f2e6a754f 100644
--- a/include/polarssl/camellia.h
+++ b/include/polarssl/camellia.h
@@ -19,8 +19,13 @@
  */
 #ifndef POLARSSL_CAMELLIA_H
 #define POLARSSL_CAMELLIA_H
-
-#include <inttypes.h>
+
+#ifdef _MSC_VER
+#include <basetsd.h>
+typedef UINT32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
 
 #define CAMELLIA_ENCRYPT     1
 #define CAMELLIA_DECRYPT     0
diff --git a/include/polarssl/xtea.h b/include/polarssl/xtea.h
index 45f7547665..fe16ba3e98 100644
--- a/include/polarssl/xtea.h
+++ b/include/polarssl/xtea.h
@@ -20,7 +20,12 @@
 #ifndef POLARSSL_XTEA_H
 #define POLARSSL_XTEA_H
 
-#include <inttypes.h>
+#ifdef _MSC_VER
+#include <basetsd.h>
+typedef UINT32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
 
 #define XTEA_ENCRYPT     1
 #define XTEA_DECRYPT     0