diff --git a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
index 8a5ad4cc1..240bad0f1 100644
--- a/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/gotthard2DetectorServer/slsDetectorFunctionList.c
@@ -2364,7 +2364,6 @@ void *start_timer(void *arg) {
                     veto_header *header = (veto_header *)(packetData2);
                     header->frameNumber = frameHeaderNr;
                     header->bunchId = 0;
-                    header->reserved = 0;
                     // fill data
                     memcpy(packetData2 + sizeof(veto_header), vetoData,
                            vetodatasize);
diff --git a/slsDetectorServers/gotthard2DetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/gotthard2DetectorServer/slsDetectorServer_defs.h
index ba07077dd..ee7ead26b 100644
--- a/slsDetectorServers/gotthard2DetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/gotthard2DetectorServer/slsDetectorServer_defs.h
@@ -60,7 +60,6 @@
 typedef struct {
     uint64_t frameNumber;
     uint64_t bunchId;
-    uint64_t reserved;
 } veto_header;
 
 /** Other Definitions */
diff --git a/slsReceiverSoftware/src/GeneralData.h b/slsReceiverSoftware/src/GeneralData.h
index 53ef917b8..f6e883031 100644
--- a/slsReceiverSoftware/src/GeneralData.h
+++ b/slsReceiverSoftware/src/GeneralData.h
@@ -495,9 +495,9 @@ class Gotthard2Data : public GeneralData {
         standardheader = true;
         defaultUdpSocketBufferSize = (1000 * 1024 * 1024);
         vetoDataSize = 160;
-        vetoPacketSize = headerSizeinPacket + vetoDataSize;
         vetoImageSize = vetoDataSize * packetsPerFrame;
-        vetoHsize = 24;
+        vetoHsize = 16;
+        vetoPacketSize = vetoHsize + vetoDataSize;
     };
 
     /**