diff --git a/.changeset/new-mice-occur.md b/.changeset/new-mice-occur.md
new file mode 100644
index 000000000000..266b54652c9d
--- /dev/null
+++ b/.changeset/new-mice-occur.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Change `slot` attribute of `IntrinsicAttributes` to match the definition of `HTMLAttributes`'s own `slot` attribute of type `string | undefined | null`
diff --git a/packages/astro/astro-jsx.d.ts b/packages/astro/astro-jsx.d.ts
index 22eccfcf3673..a20baa508611 100644
--- a/packages/astro/astro-jsx.d.ts
+++ b/packages/astro/astro-jsx.d.ts
@@ -22,7 +22,7 @@ declare namespace astroHTML.JSX {
 		extends AstroBuiltinProps,
 			AstroBuiltinAttributes,
 			AstroClientDirectives {
-		slot?: string;
+		slot?: string | undefined | null;
 		children?: Children;
 	}