diff --git a/api/js/etemplate/Et2Select/Et2SelectReadonly.ts b/api/js/etemplate/Et2Select/Et2SelectReadonly.ts
index 38350a20d8..407c564043 100644
--- a/api/js/etemplate/Et2Select/Et2SelectReadonly.ts
+++ b/api/js/etemplate/Et2Select/Et2SelectReadonly.ts
@@ -199,7 +199,11 @@ export class Et2SelectAccountReadonly extends Et2SelectReadonly
 			super.value = new_value;
 			return;
 		}
-
+		// fix scalar (number or string) values
+		if (typeof new_value !== 'object')
+		{
+			new_value = [new_value];
+		}
 		for(let id of new_value)
 		{
 			let account_name = null;
@@ -467,4 +471,4 @@ export class Et2SelectYearReadonly extends Et2SelectReadonly
 }
 
 // @ts-ignore TypeScript is not recognizing that this widget is a LitElement
-customElements.define("et2-select-year_ro", Et2SelectYearReadonly);
+customElements.define("et2-select-year_ro", Et2SelectYearReadonly);
\ No newline at end of file