diff --git a/src/Models/ThemeConfig/LayerConfig.ts b/src/Models/ThemeConfig/LayerConfig.ts
index 5ad4babfa..c4a1e4d58 100644
--- a/src/Models/ThemeConfig/LayerConfig.ts
+++ b/src/Models/ThemeConfig/LayerConfig.ts
@@ -313,7 +313,7 @@ export default class LayerConfig extends WithContextLoader {
             )
         }
         this.units = (json.units ?? []).flatMap((unitJson, i) =>
-            UnitUtils.fromJson()(unitJson, this.tagRenderings, `${context}.unit[${i}]`)
+            UnitUtils.fromJson(unitJson, this.tagRenderings, `${context}.unit[${i}]`)
         )
         {
             let filter = json.filter