diff --git a/experiments/modern/src/debugger/Variable.js b/experiments/modern/src/debugger/Variable.js
index 77538461..1dd0ac41 100644
--- a/experiments/modern/src/debugger/Variable.js
+++ b/experiments/modern/src/debugger/Variable.js
@@ -12,7 +12,8 @@ export default function Variable({ variable }) {
       if (obj == null) {
         type = "Unknown object";
       } else {
-        type = obj.getclassname();
+        // Bit of a hack. We should probably fix this.
+        type = obj.prototype.getclassname();
       }
       break;
     }