diff --git a/migration/options.c b/migration/options.c
index 7556fbc06b..68441f0276 100644
--- a/migration/options.c
+++ b/migration/options.c
@@ -1279,9 +1279,9 @@ bool migrate_params_check(MigrationParameters *params, Error **errp)
 static void migrate_params_test_apply(MigrationParameters *params,
                                       MigrationParameters *dest)
 {
-    *dest = migrate_get_current()->parameters;
+    MigrationState *s = migrate_get_current();
 
-    /* TODO use QAPI_CLONE() instead of duplicating it inline */
+    QAPI_CLONE_MEMBERS(MigrationParameters, dest, &s->parameters);
 
     if (params->has_throttle_trigger_threshold) {
         dest->throttle_trigger_threshold = params->throttle_trigger_threshold;
@@ -1300,24 +1300,18 @@ static void migrate_params_test_apply(MigrationParameters *params,
     }
 
     if (params->tls_creds) {
+        qapi_free_StrOrNull(dest->tls_creds);
         dest->tls_creds = QAPI_CLONE(StrOrNull, params->tls_creds);
-    } else {
-        /* clear the reference, it's owned by s->parameters */
-        dest->tls_creds = NULL;
     }
 
     if (params->tls_hostname) {
+        qapi_free_StrOrNull(dest->tls_hostname);
         dest->tls_hostname = QAPI_CLONE(StrOrNull, params->tls_hostname);
-    } else {
-        /* clear the reference, it's owned by s->parameters */
-        dest->tls_hostname = NULL;
     }
 
     if (params->tls_authz) {
+        qapi_free_StrOrNull(dest->tls_authz);
         dest->tls_authz = QAPI_CLONE(StrOrNull, params->tls_authz);
-    } else {
-        /* clear the reference, it's owned by s->parameters */
-        dest->tls_authz = NULL;
     }
 
     if (params->has_max_bandwidth) {
@@ -1374,8 +1368,9 @@ static void migrate_params_test_apply(MigrationParameters *params,
     }
 
     if (params->has_block_bitmap_mapping) {
-        dest->has_block_bitmap_mapping = true;
-        dest->block_bitmap_mapping = params->block_bitmap_mapping;
+        qapi_free_BitmapMigrationNodeAliasList(dest->block_bitmap_mapping);
+        dest->block_bitmap_mapping = QAPI_CLONE(BitmapMigrationNodeAliasList,
+                                                params->block_bitmap_mapping);
     }
 
     if (params->has_x_vcpu_dirty_limit_period) {
@@ -1399,7 +1394,8 @@ static void migrate_params_test_apply(MigrationParameters *params,
     }
 
     if (params->has_cpr_exec_command) {
-        dest->cpr_exec_command = params->cpr_exec_command;
+        qapi_free_strList(dest->cpr_exec_command);
+        dest->cpr_exec_command = QAPI_CLONE(strList, params->cpr_exec_command);
     }
 }
 
@@ -1555,4 +1551,6 @@ void qmp_migrate_set_parameters(MigrationParameters *params, Error **errp)
     }
 
     migrate_tls_opts_free(&tmp);
+    qapi_free_BitmapMigrationNodeAliasList(tmp.block_bitmap_mapping);
+    qapi_free_strList(tmp.cpr_exec_command);
 }