diff --git a/Models/ThemeConfig/Json/TagRenderingConfigJson.ts b/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
index 72ed195a0..c9b3733a3 100644
--- a/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
+++ b/Models/ThemeConfig/Json/TagRenderingConfigJson.ts
@@ -59,7 +59,7 @@ export interface TagRenderingConfigJson {
         /**
          * A (translated) text that is shown (as gray text) within the textfield
          */
-        placeholder: string | any
+        placeholder?: string | any
         
         /**
          * Extra parameters to initialize the input helper arguments.