diff --git a/yaml/sliding_window.yaml b/yaml/sliding_window.yaml
index e5cc21021a8068e82f63027b53ce378f3c3a2f2a..5b1687ecfa775cb23f6a1468184a58d9f1b93cf3 100644
--- a/yaml/sliding_window.yaml
+++ b/yaml/sliding_window.yaml
@@ -1,4 +1,5 @@
 type: "TreeManagerSlidingWindow" 
+plugin: "core"
 n_frames: 10
 viral_remove_empty_parent: true
 n_fix_first_frames: 0
\ No newline at end of file
diff --git a/yaml/sliding_window_dual.yaml b/yaml/sliding_window_dual.yaml
index cda538bfc46da3f0343fc79833935f408606e72d..a4532245aaa5d17cb7f69323f5e32c2a47a8ad28 100644
--- a/yaml/sliding_window_dual.yaml
+++ b/yaml/sliding_window_dual.yaml
@@ -1,4 +1,5 @@
-type: "TreeManagerSlidingWindowDualRate" 
+type: "TreeManagerSlidingWindowDualRate"
+plugin: "core"
 n_frames: 10
 n_frames_recent: 5
 rate_old_frames: 10