diff --git a/include/mbedtls/sha256.h b/include/mbedtls/sha256.h
index 1c59740..4a97e45 100644
--- a/include/mbedtls/sha256.h
+++ b/include/mbedtls/sha256.h
@@ -33,6 +33,8 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
+#include "mbedtls/platform_util.h"
+
 #include <stddef.h>
 #include <stdint.h>
 
@@ -155,11 +157,6 @@
                                      const unsigned char data[64] );
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#define MBEDTLS_DEPRECATED      __attribute__((deprecated))
-#else
-#define MBEDTLS_DEPRECATED
-#endif
 /**
  * \brief          This function starts a SHA-224 or SHA-256 checksum
  *                 calculation.
@@ -216,8 +213,6 @@
  */
 MBEDTLS_DEPRECATED void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
                                                 const unsigned char data[64] );
-
-#undef MBEDTLS_DEPRECATED
 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 /**
@@ -244,12 +239,6 @@
                         int is224 );
 
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#define MBEDTLS_DEPRECATED      __attribute__((deprecated))
-#else
-#define MBEDTLS_DEPRECATED
-#endif
-
 /**
  * \brief          This function calculates the SHA-224 or SHA-256 checksum
  *                 of a buffer.
@@ -274,8 +263,6 @@
                                         size_t ilen,
                                         unsigned char output[32],
                                         int is224 );
-
-#undef MBEDTLS_DEPRECATED
 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 #if defined(MBEDTLS_SELF_TEST)