diff --git a/CHANGELOG.md b/CHANGELOG.md
index bee74347..24b0218e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 ArduinoJson: change log
 =======================
 
+HEAD
+----
+
+* Double speed of `DynamicJsonDocument::garbageCollect()`
+
 v6.21.0 (2023-03-14)
 -------
 
diff --git a/src/ArduinoJson/Document/BasicJsonDocument.hpp b/src/ArduinoJson/Document/BasicJsonDocument.hpp
index 4e36273c..cabc11dc 100644
--- a/src/ArduinoJson/Document/BasicJsonDocument.hpp
+++ b/src/ArduinoJson/Document/BasicJsonDocument.hpp
@@ -127,7 +127,6 @@ class BasicJsonDocument : AllocatorOwner<TAllocator>, public JsonDocument {
     BasicJsonDocument tmp(*this);
     if (!tmp.capacity())
       return false;
-    tmp.set(*this);
     moveAssignFrom(tmp);
     return true;
   }