diff --git a/doc/libmicrohttpd.texi b/doc/libmicrohttpd.texi
index 46eed3b0..dfe8a686 100644
--- a/doc/libmicrohttpd.texi
+++ b/doc/libmicrohttpd.texi
@@ -3332,7 +3332,7 @@ ahc_echo (void *cls,
 			        password,
 			        300,
                                 MHD_DIGEST_ALG_SHA256);
-  free(username);
+  MHD_free(username);
   if ( (ret == MHD_INVALID_NONCE) ||
        (ret == MHD_NO) )
     @{
diff --git a/src/examples/digest_auth_example.c b/src/examples/digest_auth_example.c
index ea3da19a..68d13c84 100644
--- a/src/examples/digest_auth_example.c
+++ b/src/examples/digest_auth_example.c
@@ -70,10 +70,11 @@ ahc_echo (void *cls,
     response = MHD_create_response_from_buffer (strlen (DENIED),
                                                 DENIED,
                                                 MHD_RESPMEM_PERSISTENT);
-    ret = MHD_queue_auth_fail_response (connection, realm,
-                                        MY_OPAQUE_STR,
-                                        response,
-                                        MHD_NO);
+    ret = MHD_queue_auth_fail_response2 (connection, realm,
+                                         MY_OPAQUE_STR,
+                                         response,
+                                         MHD_NO,
+                                         MHD_DIGEST_ALG_MD5);
     MHD_destroy_response (response);
     return ret;
   }
@@ -90,11 +91,12 @@ ahc_echo (void *cls,
                                                 MHD_RESPMEM_PERSISTENT);
     if (NULL == response)
       return MHD_NO;
-    ret = MHD_queue_auth_fail_response (connection, realm,
-                                        MY_OPAQUE_STR,
-                                        response,
-                                        (res == MHD_INVALID_NONCE) ? MHD_YES :
-                                        MHD_NO);
+    ret = MHD_queue_auth_fail_response2 (connection, realm,
+                                         MY_OPAQUE_STR,
+                                         response,
+                                         (res == MHD_INVALID_NONCE) ? MHD_YES :
+                                         MHD_NO,
+                                         MHD_DIGEST_ALG_MD5);
     MHD_destroy_response (response);
     return ret;
   }
diff --git a/src/testcurl/test_digestauth_sha256.c b/src/testcurl/test_digestauth_sha256.c
index fff3a1d7..f6df664e 100644
--- a/src/testcurl/test_digestauth_sha256.c
+++ b/src/testcurl/test_digestauth_sha256.c
@@ -129,7 +129,7 @@ ahc_echo (void *cls,
                                   password,
                                   300,
                                   MHD_DIGEST_ALG_SHA256);
-  free (username);
+  MHD_free (username);
   if ( (ret_i == MHD_INVALID_NONCE) ||
        (ret_i == MHD_NO) )
   {
diff --git a/src/testcurl/test_digestauth_with_arguments.c b/src/testcurl/test_digestauth_with_arguments.c
index 91f2dd67..ac1aed56 100644
--- a/src/testcurl/test_digestauth_with_arguments.c
+++ b/src/testcurl/test_digestauth_with_arguments.c
@@ -107,10 +107,11 @@ ahc_echo (void *cls,
     response = MHD_create_response_from_buffer (strlen (DENIED),
                                                 DENIED,
                                                 MHD_RESPMEM_PERSISTENT);
-    ret = MHD_queue_auth_fail_response (connection, realm,
-                                        MY_OPAQUE,
-                                        response,
-                                        MHD_NO);
+    ret = MHD_queue_auth_fail_response2 (connection, realm,
+                                         MY_OPAQUE,
+                                         response,
+                                         MHD_NO,
+                                         MHD_DIGEST_ALG_MD5);
     MHD_destroy_response (response);
     return ret;
   }
@@ -118,7 +119,7 @@ ahc_echo (void *cls,
                                  username,
                                  password,
                                  300);
-  free (username);
+  MHD_free (username);
   if ( (ret_i == MHD_INVALID_NONCE) ||
        (ret_i == MHD_NO) )
   {
@@ -127,11 +128,12 @@ ahc_echo (void *cls,
                                                 MHD_RESPMEM_PERSISTENT);
     if (NULL == response)
       return MHD_NO;
-    ret = MHD_queue_auth_fail_response (connection, realm,
-                                        MY_OPAQUE,
-                                        response,
-                                        (ret_i == MHD_INVALID_NONCE) ?
-                                        MHD_YES : MHD_NO);
+    ret = MHD_queue_auth_fail_response2 (connection, realm,
+                                         MY_OPAQUE,
+                                         response,
+                                         (ret_i == MHD_INVALID_NONCE) ?
+                                         MHD_YES : MHD_NO,
+                                         MHD_DIGEST_ALG_MD5);
     MHD_destroy_response (response);
     return ret;
   }