#include "packfile.h"
 #include "parse-options.h"
 #include "help.h"
-#include "fetch-object.h"
+#include "promisor-remote.h"
 
 #ifdef NO_FAST_WORKING_DIRECTORY
 #define FAST_WORKING_DIRECTORY 0
 
 void diffcore_std(struct diff_options *options)
 {
-       if (options->repo == the_repository &&
-           repository_format_partial_clone) {
+       if (options->repo == the_repository && has_promisor_remote()) {
                /*
                 * Prefetch the diff pairs that are about to be flushed.
                 */
                        /*
                         * NEEDSWORK: Consider deduplicating the OIDs sent.
                         */
-                       fetch_objects(repository_format_partial_clone,
-                                     to_fetch.oid, to_fetch.nr);
+                       promisor_remote_get_direct(options->repo,
+                                                  to_fetch.oid, to_fetch.nr);
                oid_array_clear(&to_fetch);
        }