diff --git a/pygit2/decl.h b/pygit2/decl.h
index d3b5b02..7068e94 100644
--- a/pygit2/decl.h
+++ b/pygit2/decl.h
@@ -114,6 +114,7 @@ int git_remote_create(
 	git_repository *repo,
 	const char *name,
 	const char *url);
+int git_repository_state_cleanup(git_repository *repo);
 
 const char * git_remote_name(const git_remote *remote);
 
diff --git a/pygit2/repository.py b/pygit2/repository.py
index db047f5..c4e46c8 100644
--- a/pygit2/repository.py
+++ b/pygit2/repository.py
@@ -299,3 +299,6 @@ class Repository(_Repository):
             raise NotImplementedError('git_diff_blob_to_blob()')
 
         raise ValueError("Only blobs and treeish can be diffed")
+
+    def clean_state_files(self):
+        C.git_repository_state_cleanup(self._repo)