diff --git a/src/modules/navigator/mission_block.h b/src/modules/navigator/mission_block.h
index 9a2be82422..4580d3fb17 100644
--- a/src/modules/navigator/mission_block.h
+++ b/src/modules/navigator/mission_block.h
@@ -67,6 +67,7 @@ public:
 	 */
 	virtual ~MissionBlock();
 
+	/* TODO: move this to a helper class in navigator */
 	static bool item_contains_position(const struct mission_item_s *item);
 
 protected: