diff --git a/src/digital-components/base-input-button/button-functionality-props.js b/src/digital-components/base-input-button/button-functionality-props.js
index 9a4aef5c9..fe2104457 100644
--- a/src/digital-components/base-input-button/button-functionality-props.js
+++ b/src/digital-components/base-input-button/button-functionality-props.js
@@ -4,8 +4,15 @@ export const inputButtonProps = {
         required: true,
     },
     modelValue: {
-        type: [Array, String, Number],
         required: true,
+        validator: function (prop) {
+            return (
+                prop === null ||
+                Array.isArray(prop) ||
+                typeof prop === "string" ||
+                (typeof prop === "number" && !Number.isNaN(prop))
+            );
+        },
     },
     isMultiSelect: Boolean,
     groupName: {