diff --git a/slsDetectorSoftware/commonFiles/sls_detector_defs.h b/slsDetectorSoftware/commonFiles/sls_detector_defs.h
index ab1e24ad6..4d55f5b6b 100755
--- a/slsDetectorSoftware/commonFiles/sls_detector_defs.h
+++ b/slsDetectorSoftware/commonFiles/sls_detector_defs.h
@@ -348,7 +348,8 @@ enum dacIndex {
   E_Vcn,		/**< eiger */
   E_Vis,		/**< eiger */
   IO_DELAY,		/**< eiger io delay */
-  ADC_VPP		/**< adc vpp for jctb */
+  ADC_VPP,		/**< adc vpp for jctb */
+  HV_NEW             /**< new hv index for jungfrau & c */
 };
 
 /**
diff --git a/slsDetectorSoftware/slsDetector/slsDetector.cpp b/slsDetectorSoftware/slsDetector/slsDetector.cpp
index 310bca9f0..8fdc21b87 100644
--- a/slsDetectorSoftware/slsDetector/slsDetector.cpp
+++ b/slsDetectorSoftware/slsDetector/slsDetector.cpp
@@ -2216,6 +2216,11 @@ dacs_t slsDetector::setDAC(dacs_t val, dacIndex index, int mV, int imod){
   int ret=FAIL;
   char mess[100];
   int arg[3];
+
+
+  if (    (thisDetector->myDetectorType != GOTTHARD) &&  (thisDetector->myDetectorType != PROPIX) && index==HV_POT)
+    index=HV_NEW;
+
   arg[0]=index;
   arg[1]=imod;
   arg[2]=mV;