diff --git a/config.go b/config.go
index c19ad32..ab9af38 100644
--- a/config.go
+++ b/config.go
@@ -77,7 +77,7 @@ func (c *Config) AddFile(path string, level ConfigLevel, force bool) error {
 	runtime.LockOSThread()
 	defer runtime.UnlockOSThread()
 
-	ret := C.git_config_add_file_ondisk(c.ptr, cpath, C.git_config_level_t(level), cbool(force))
+	ret := C.git_config_add_file_ondisk(c.ptr, cpath, C.git_config_level_t(level), nil, cbool(force))
 	runtime.KeepAlive(c)
 	if ret < 0 {
 		return MakeGitError(ret)
diff --git a/vendor/libgit2 b/vendor/libgit2
index c7c5f2c..f1323d9 160000
--- a/vendor/libgit2
+++ b/vendor/libgit2
@@ -1 +1 @@
-Subproject commit c7c5f2c4ecc727ac555f51bd20353f7f3ae9c07a
+Subproject commit f1323d9c161aeeada190fd9615a8b5a9fb8a7f3e