diff --git a/dash/_patch.py b/dash/_patch.py
index f0694ac909..99a4a919e8 100644
--- a/dash/_patch.py
+++ b/dash/_patch.py
@@ -2,7 +2,7 @@
 
 
 def _operation(name, location, **kwargs):
-    return {"operation": name, "location": location, "params": dict(**kwargs)}
+    return {"operation": name, "location": location, "params": kwargs}
 
 
 _noop = object()