diff --git a/DataFormats/PatCandidates/src/classes_def_objects.xml b/DataFormats/PatCandidates/src/classes_def_objects.xml
index 5db98b2dd59a1..82904153a3d6b 100644
--- a/DataFormats/PatCandidates/src/classes_def_objects.xml
+++ b/DataFormats/PatCandidates/src/classes_def_objects.xml
@@ -68,7 +68,7 @@
 
 
   <class name="pat::Muon"  ClassVersion="29">
-   <version ClassVersion="29" checksum="3346528095"/>
+   <version ClassVersion="29" checksum="4221614933"/>
    <version ClassVersion="28" checksum="282262684"/>
    <version ClassVersion="27" checksum="3473399161"/>
    <version ClassVersion="26" checksum="1156855644"/>