diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab07e118..a19b4e00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
   - Drop support for flask 1.x due to dependency issue in Jinja2 and EOL (#195)
 
 - Fixes:
+  - Fix the problem of multiple requests for the same traceId in Tornado framework (#209)
   - Spans now correctly reference finished parents (#161)
   - Remove potential password leak from Aiohttp outgoing url (#175)
   - Handle error when REMOTE_PORT is missing in Flask (#176)
diff --git a/skywalking/trace/context.py b/skywalking/trace/context.py
index ec359d99..90d0c035 100644
--- a/skywalking/trace/context.py
+++ b/skywalking/trace/context.py
@@ -46,10 +46,7 @@ def _spans():  # need to do this because can't set mutable default = [] in conte
         return spans
 
     def _spans_dup():
-        spans = __spans.get()[:]
-        __spans.set(spans)
-
-        return spans
+        return __spans.get()
 
     __spans.set([])