diff --git a/src/jsx.d.ts b/src/jsx.d.ts
index 78ec06b5d9..86cef103ff 100644
--- a/src/jsx.d.ts
+++ b/src/jsx.d.ts
@@ -733,6 +733,7 @@ export namespace JSXInternal {
 		slot?: string;
 		span?: number;
 		spellcheck?: boolean;
+		spellCheck?: boolean;
 		src?: string;
 		srcset?: string;
 		srcDoc?: string;