diff --git a/CHANGES/1493.bugfix.rst b/CHANGES/1493.bugfix.rst
index fbdd85f9..386cdb71 100644
--- a/CHANGES/1493.bugfix.rst
+++ b/CHANGES/1493.bugfix.rst
@@ -1 +1 @@
-The filter now activates even if an empty string ("") is set as the default value in the class.
+Fix handling of default empty string ("") in CallbackData filter