diff --git a/fles/mcbm2018/unpacker/CbmMcbm2018UnpackerTaskTof.cxx b/fles/mcbm2018/unpacker/CbmMcbm2018UnpackerTaskTof.cxx
index e9777845af8c642c1c29a7a77c446530b95009ba..4be0c21b4cd03d75ad90975efade99ec6eeab2e5 100644
--- a/fles/mcbm2018/unpacker/CbmMcbm2018UnpackerTaskTof.cxx
+++ b/fles/mcbm2018/unpacker/CbmMcbm2018UnpackerTaskTof.cxx
@@ -39,7 +39,7 @@ CbmMcbm2018UnpackerTaskTof::CbmMcbm2018UnpackerTaskTof(UInt_t /*uNbGdpb*/)
   , fbSeparateArrayT0(kFALSE)
   , fbWriteOutput(kTRUE)
   , fuDigiMaskedIdT0(0x00002806)
-  , fuDigiMaskId(0x0001FFFF)
+  , fuDigiMaskId(0x001FFFFF)
   , fulTsCounter(0)
   , fUnpackerAlgo(nullptr) {
   fUnpackerAlgo = new CbmMcbm2018UnpackerAlgoTof();