diff --git a/src/match_loop_closure.h b/src/match_loop_closure.h
index ab359c4b3c606deca9ec5e6b5566b4dd057e285f..b51d850697edff44e358ac14f9125b46509baa22 100644
--- a/src/match_loop_closure.h
+++ b/src/match_loop_closure.h
@@ -27,7 +27,6 @@ struct MatchLoopClosure {
   bool match;
   int keypoints_number_match;
   double score;
-  double id;
 };
 
 typedef std::shared_ptr<MatchLoopClosure> matchLoopClosurePtr;
diff --git a/src/scene_falko.h b/src/scene_falko.h
index 01c2fe172360aaa75bf3fc290e52e11c90df2950..ce8e99965a13cd92943f6f55ac8d9d9fc122b356 100644
--- a/src/scene_falko.h
+++ b/src/scene_falko.h
@@ -38,6 +38,7 @@ namespace laserscanutils {
 template <typename D> struct SceneFalko : public SceneBase {
   std::vector<falkolib::FALKO> keypoints_list_;
   std::vector<D> descriptors_list_;
+  int id;
 };
 
 template <typename D> struct SceneFalkoList : public SceneBaseList {