diff --git a/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDisplay.kt b/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDisplay.kt
index a11c930d..871a542f 100644
--- a/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDisplay.kt
+++ b/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDisplay.kt
@@ -88,7 +88,7 @@ class MspDisplay() : DeviceDisplay<MspDevice>(), DeviceListener, NamedValueListe
                 configure(plotFrameMeta)
             }
         }
-        val plottables = PlotGroup().apply {
+        val plottables = PlotGroup("peakJump").apply {
             if (plotFrameMeta.hasMeta("peakJump.peak")) {
                 for (peakMeta in plotFrameMeta.getMetaList("peakJump.peak")) {
                     val mass = peakMeta.getString("mass")