diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index 91bac0ef43..1ae5651ba9 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -66,7 +66,7 @@ int main(void)
     mbedtls_dhm_context dhm;
     mbedtls_aes_context aes;
 
-    mbedtls_mpi N, P, Q, D, E;
+    mbedtls_mpi N, P, Q, D, E, dhm_P, dhm_G;
 
     mbedtls_net_init(&listen_fd);
     mbedtls_net_init(&client_fd);
@@ -75,8 +75,8 @@ int main(void)
     mbedtls_ctr_drbg_init(&ctr_drbg);
 
     mbedtls_mpi_init(&N); mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
-    mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
-
+    mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&dhm_P);
+    mbedtls_mpi_init(&dhm_G);
     /*
      * 1. Setup the RNG
      */
@@ -141,8 +141,9 @@ int main(void)
         goto exit;
     }
 
-    if (mbedtls_mpi_read_file(&dhm.MBEDTLS_PRIVATE(P), 16, f) != 0 ||
-        mbedtls_mpi_read_file(&dhm.MBEDTLS_PRIVATE(G), 16, f) != 0) {
+    if ((ret = mbedtls_mpi_read_file(&dhm_P, 16, f)) != 0 ||
+        (ret = mbedtls_mpi_read_file(&dhm_G, 16, f)) != 0 ||
+        (ret = mbedtls_dhm_set_group(&dhm, &dhm_P, &dhm_G) != 0)) {
         mbedtls_printf(" failed\n  ! Invalid DH parameter file\n\n");
         fclose(f);
         goto exit;
@@ -176,7 +177,7 @@ int main(void)
     memset(buf, 0, sizeof(buf));
 
     if ((ret =
-             mbedtls_dhm_make_params(&dhm, (int) mbedtls_mpi_size(&dhm.MBEDTLS_PRIVATE(P)), buf, &n,
+             mbedtls_dhm_make_params(&dhm, (int) mbedtls_dhm_get_len(&dhm), buf, &n,
                                      mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
         mbedtls_printf(" failed\n  ! mbedtls_dhm_make_params returned %d\n\n", ret);
         goto exit;
@@ -286,7 +287,8 @@ int main(void)
 exit:
 
     mbedtls_mpi_free(&N); mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
-    mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
+    mbedtls_mpi_free(&D); mbedtls_mpi_free(&E); mbedtls_mpi_free(&dhm_P);
+    mbedtls_mpi_free(&dhm_G);
 
     mbedtls_net_free(&client_fd);
     mbedtls_net_free(&listen_fd);
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 6f7f69bda0..8fa5d62987 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -1089,20 +1089,24 @@ int main(int argc, char *argv[])
         mbedtls_dhm_context dhm;
         size_t olen;
         size_t n;
+        mbedtls_mpi P, G;
+        mbedtls_mpi_init(&P); mbedtls_mpi_init(&G);
 
         for (i = 0; (size_t) i < sizeof(dhm_sizes) / sizeof(dhm_sizes[0]); i++) {
             mbedtls_dhm_init(&dhm);
 
-            if (mbedtls_mpi_read_binary(&dhm.MBEDTLS_PRIVATE(P), dhm_P[i],
+            if (mbedtls_mpi_read_binary(&P, dhm_P[i],
                                         dhm_P_size[i]) != 0 ||
-                mbedtls_mpi_read_binary(&dhm.MBEDTLS_PRIVATE(G), dhm_G[i],
-                                        dhm_G_size[i]) != 0) {
+                mbedtls_mpi_read_binary(&G, dhm_G[i],
+                                        dhm_G_size[i]) != 0 ||
+                mbedtls_dhm_set_group(&dhm, &P, &G) != 0) {
                 mbedtls_exit(1);
             }
 
-            n = mbedtls_mpi_size(&dhm.MBEDTLS_PRIVATE(P));
+            n = mbedtls_dhm_get_len(&dhm);
             mbedtls_dhm_make_public(&dhm, (int) n, buf, n, myrand, NULL);
-            if (mbedtls_mpi_copy(&dhm.MBEDTLS_PRIVATE(GY), &dhm.MBEDTLS_PRIVATE(GX)) != 0) {
+
+            if (mbedtls_dhm_read_public(&dhm, buf, n) != 0) {
                 mbedtls_exit(1);
             }
 
@@ -1119,6 +1123,7 @@ int main(int argc, char *argv[])
                             mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &olen, myrand, NULL));
 
             mbedtls_dhm_free(&dhm);
+            mbedtls_mpi_free(&P), mbedtls_mpi_free(&G);
         }
     }
 #endif