diff --git a/src/lib/litegraph/src/LGraphNode.configure.test.ts b/src/lib/litegraph/src/LGraphNode.configure.test.ts
index 67d3ecd7b8..55a947c376 100644
--- a/src/lib/litegraph/src/LGraphNode.configure.test.ts
+++ b/src/lib/litegraph/src/LGraphNode.configure.test.ts
@@ -56,6 +56,16 @@ describe('LGraphNode.configure numeric widget sanitization', () => {
     expect(node.widgets![0].value).toBe(99999)
   })
 
+  it('preserves default when widgets_values contains null for a gradientslider widget', () => {
+    node.addWidget('gradientslider', 'denoise', 0.75, null, {})
+
+    node.configure(
+      serialisedNode({ widgets_values: [null] as unknown[] as number[] })
+    )
+
+    expect(node.widgets![0].value).toBe(0.75)
+  })
+
   it('does not sanitize null for non-numeric widget types', () => {
     node.addWidget('text', 'prompt', 'default text', null, {})
 
diff --git a/src/lib/litegraph/src/LGraphNode.ts b/src/lib/litegraph/src/LGraphNode.ts
index e390640e63..507bb1c94b 100644
--- a/src/lib/litegraph/src/LGraphNode.ts
+++ b/src/lib/litegraph/src/LGraphNode.ts
@@ -920,7 +920,12 @@ export class LGraphNode
           if (widget.serialize === false) continue
           if (i >= info.widgets_values.length) break
           const incoming = info.widgets_values[i++]
-          const isNumeric = ['number', 'slider', 'knob'].includes(widget.type)
+          const isNumeric = [
+            'number',
+            'slider',
+            'gradientslider',
+            'knob'
+          ].includes(widget.type)
           const isInvalid =
             incoming === null ||
             incoming === undefined ||