diff --git a/src/services/litegraphService.ts b/src/services/litegraphService.ts
index 66067d997..0b8a7922e 100644
--- a/src/services/litegraphService.ts
+++ b/src/services/litegraphService.ts
@@ -147,7 +147,6 @@ export const useLitegraphService = () => {
           widget.label = st(nameKey, widget.label ?? inputName)
           widget.options ??= {}
           Object.assign(widget.options, {
-            inputIsOptional: inputSpec.isOptional,
             forceInput: inputSpec.forceInput,
             advanced: inputSpec.advanced,
             hidden: inputSpec.hidden
diff --git a/src/types/litegraph-augmentation.d.ts b/src/types/litegraph-augmentation.d.ts
index ed96d42d2..bc0f74aed 100644
--- a/src/types/litegraph-augmentation.d.ts
+++ b/src/types/litegraph-augmentation.d.ts
@@ -26,10 +26,6 @@ declare module '@comfyorg/litegraph/dist/types/widgets' {
      * The minimum size of the node if the widget is present.
      */
     minNodeSize?: Size
-    /**
-     * Whether the widget is optional.
-     */
-    inputIsOptional?: boolean
     /**
      * Whether the widget is forced to be an input.
      */