diff --git a/src/juml.ts b/src/juml.ts
index 36a6e49..e7d3868 100644
--- a/src/juml.ts
+++ b/src/juml.ts
@@ -34,7 +34,7 @@ export default class juml {
         if ((this.#groups[group] ?? {})[name] == null) {
             return false;
         }
-        this.#groups[group][name].set(value);
+        this.#groups[group][name].set = value;
         return true;
     }