diff --git a/index.go b/index.go
index 6b90758..9f37f33 100644
--- a/index.go
+++ b/index.go
@@ -287,6 +287,7 @@ func (v *Index) HasConflicts() bool {
 	return C.git_index_has_conflicts(v.ptr) != 0
 }
 
+// FIXME: this might return an error
 func (v *Index) CleanupConflicts() {
 	C.git_index_conflict_cleanup(v.ptr)
 }