diff --git a/js/web/lib/wasm/jsep/webnn/webnn.d.ts b/js/web/lib/wasm/jsep/webnn/webnn.d.ts
index 2620168738..ca06f5c695 100644
--- a/js/web/lib/wasm/jsep/webnn/webnn.d.ts
+++ b/js/web/lib/wasm/jsep/webnn/webnn.d.ts
@@ -36,8 +36,8 @@ interface MLOperandDescriptor {
   dimensions?: readonly number[];
 }
 interface MLOperand {
-  dataType(): MLOperandDataType;
-  shape(): number[];
+  dataType: MLOperandDataType;
+  shape: readonly number[];
 }
 interface MLActivation {}
 type MLNamedOperands = Record<string, MLOperand>;