diff --git a/app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx b/app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx
index f091172..ba4363e 100644
--- a/app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx
+++ b/app/src/components/Sidebar/ValueRenderer/ValuePanel.tsx
@@ -107,6 +107,9 @@ class ValuePanel extends React.Component<Props, State> {
 
   private renderActionButtons() {
     const handleValue = (mouseEvent: React.MouseEvent, value: any) => {
+      if (value === null) {
+        return
+      }
       this.props.settingsActions.setValueDisplayMode(value)
     }