diff --git a/core/processor.py b/core/processor.py
index 6e1e1f84dfb13700666da67247f79f0ebd122fd4..30bef87aea021dec2e1cd4bad71ed29e233d1c57 100644
--- a/core/processor.py
+++ b/core/processor.py
@@ -115,7 +115,7 @@ class PostProcessor:
             prev_idchanges = self._signal.get_merges()
 
         changes_history = list(prev_idchanges) + [np.array(x) for x in merge_events]
-        self._writer.write("modifiers/id_changes", data=changes_history)
+        self._writer.write("modifiers/merges", data=changes_history)
 
         # changes_history += picks
         # TODO add picks dataset