diff --git a/packages/tsx-dom-types/src/HTMLAttributes.ts b/packages/tsx-dom-types/src/HTMLAttributes.ts
index 99c3c4b..f733adf 100644
--- a/packages/tsx-dom-types/src/HTMLAttributes.ts
+++ b/packages/tsx-dom-types/src/HTMLAttributes.ts
@@ -40,6 +40,7 @@ export interface HTMLAttributes {
     alt?: string;
     as?: string;
     async?: boolean;
+    autocapitalize?: string;
     autocomplete?: string;
     autofocus?: boolean;
     autoplay?: boolean;