diff --git a/artiq/dashboard/moninj.py b/artiq/dashboard/moninj.py
index ab9b741c9..96008e21a 100644
--- a/artiq/dashboard/moninj.py
+++ b/artiq/dashboard/moninj.py
@@ -40,8 +40,12 @@ class _MoninjWidget(QtWidgets.QFrame):
         self.grid.setHorizontalSpacing(0)
         self.grid.setVerticalSpacing(0)
         self.setLayout(self.grid)
+        tooltip = title
+        if len(title) > 20:
+            title = title[:11] + "..." + title[-6:]
         label = QtWidgets.QLabel(title)
         label.setAlignment(QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop)
+        label.setToolTip(tooltip)
         self.grid.addWidget(label, 1, 1)