Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx	(revision 9336)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcTrigHeader.hxx	(revision 9369)
@@ -66,5 +66,5 @@
   void SetTrigPattern (UInt_t upi, UInt_t loi){
 
-    if (upi==loi==0) {
+    if (upi==0 && loi==0) {
       fTrigPattern[0]= (UInt_t) fThreshold[0];
       fTrigPattern[1]= (UInt_t) (100*fMultiplicity+fTopology);