diff --git a/abspath.c b/abspath.c
index 39e06b5848..9a81c5525b 100644
--- a/abspath.c
+++ b/abspath.c
@@ -280,3 +280,10 @@ char *prefix_filename(const char *pfx, const char *arg)
 #endif
 	return strbuf_detach(&path, NULL);
 }
+
+char *prefix_filename_except_for_dash(const char *pfx, const char *arg)
+{
+	if (!strcmp(arg, "-"))
+		return xstrdup(arg);
+	return prefix_filename(pfx, arg);
+}
diff --git a/builtin/bundle.c b/builtin/bundle.c
index 02dab1cfa0..eca39b64bf 100644
--- a/builtin/bundle.c
+++ b/builtin/bundle.c
@@ -59,7 +59,7 @@ static int parse_options_cmd_bundle(int argc,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 	if (!argc)
 		usage_msg_opt(_("need a <file> argument"), usagestr, options);
-	*bundle_file = prefix_filename(prefix, argv[0]);
+	*bundle_file = prefix_filename_except_for_dash(prefix, argv[0]);
 	return argc;
 }
 
diff --git a/cache.h b/cache.h
index fcf49706ad..d21b19a402 100644
--- a/cache.h
+++ b/cache.h
@@ -634,6 +634,9 @@ char *prefix_path_gently(const char *prefix, int len, int *remaining, const char
  */
 char *prefix_filename(const char *prefix, const char *path);
 
+/* Likewise, but path=="-" always yields "-" */
+char *prefix_filename_except_for_dash(const char *prefix, const char *path);
+
 int check_filename(const char *prefix, const char *name);
 void verify_filename(const char *prefix,
 		     const char *name,
diff --git a/t/t6020-bundle-misc.sh b/t/t6020-bundle-misc.sh
index 063e8ce6b4..7fc39660f1 100755
--- a/t/t6020-bundle-misc.sh
+++ b/t/t6020-bundle-misc.sh
@@ -581,4 +581,15 @@ test_expect_success 'read bundle over stdin' '
 	test_cmp expect actual
 '
 
+test_expect_success 'send a bundle to standard output' '
+	git bundle create - --all HEAD >bundle-one &&
+	mkdir -p down &&
+	git -C down bundle create - --all HEAD >bundle-two &&
+	git bundle verify bundle-one &&
+	git bundle verify bundle-two &&
+	git ls-remote bundle-one >expect &&
+	git ls-remote bundle-two >actual &&
+	test_cmp expect actual
+'
+
 test_done