diff --git a/library/rsa.c b/library/rsa.c
index 462cff6..17a7d9e 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -46,7 +46,7 @@
 #include "mbedtls/error.h"
 #include "constant_time_internal.h"
 #include "mbedtls/constant_time.h"
-#include "md_internal.h"
+#include "hash_info.h"
 
 #include <string.h>
 
@@ -1736,7 +1736,7 @@
     /* Are we signing hashed or raw data? */
     if( md_alg != MBEDTLS_MD_NONE )
     {
-        unsigned char md_size = mbedtls_md_internal_get_size( md_alg );
+        unsigned char md_size = mbedtls_hash_info_get_size( md_alg );
         if( md_size == 0 )
             return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );