#include "blob.h"
 #include "quote.h"
 #include "parse-options.h"
+#include "exec_cmd.h"
 
 static void hash_fd(int fd, const char *type, int write_object, const char *path)
 {
 
        type = blob_type;
 
-       argc = parse_options(argc, argv, hash_object_options, hash_object_usage, 0);
+       git_extract_argv0_path(argv[0]);
+
+       argc = parse_options(argc, argv, NULL, hash_object_options,
+                            hash_object_usage, 0);
 
        if (write_object) {
                prefix = setup_git_directory();