diff --git a/packages/components/src/components/SquiggleViewer/ExpressionViewer.tsx b/packages/components/src/components/SquiggleViewer/ExpressionViewer.tsx
index c2677789..cb40c509 100644
--- a/packages/components/src/components/SquiggleViewer/ExpressionViewer.tsx
+++ b/packages/components/src/components/SquiggleViewer/ExpressionViewer.tsx
@@ -298,7 +298,9 @@ export const ExpressionViewer: React.FC<Props> = ({ value, width }) => {
           {() => (
             <div>
               <span>No display for type: </span>{" "}
-              <span className="font-semibold text-slate-600">{(value as {tag: string}).tag}</span>
+              <span className="font-semibold text-slate-600">
+                {(value as { tag: string }).tag}
+              </span>
             </div>
           )}
         </VariableList>