diff --git a/ts_web/elements/dees-form.ts b/ts_web/elements/dees-form.ts
index b613461..1d837dd 100644
--- a/ts_web/elements/dees-form.ts
+++ b/ts_web/elements/dees-form.ts
@@ -103,7 +103,9 @@ export class DeesForm extends DeesElement {
         requiredOK = false;
       }
     }
-    this.getSubmitButton().disabled = !requiredOK;
+    if (this.getSubmitButton()) {
+      this.getSubmitButton().disabled = !requiredOK;
+    }
   }
 
   public async gatherData() {