diff --git a/.changeset/gentle-eyes-trade.md b/.changeset/gentle-eyes-trade.md
new file mode 100644
index 00000000..434454eb
--- /dev/null
+++ b/.changeset/gentle-eyes-trade.md
@@ -0,0 +1,5 @@
+---
+"preact-render-to-string": patch
+---
+
+fix: use cjs types instead of esm for jsx export to fix default export from esm
diff --git a/jsx.d.ts b/jsx.d.ts
index 752f3e55..40fd5384 100644
--- a/jsx.d.ts
+++ b/jsx.d.ts
@@ -10,15 +10,24 @@ interface Options {
 	skipFalseAttributes?: boolean;
 }
 
-export default function renderToStringPretty(
+declare function renderToStringPretty(
 	vnode: VNode,
 	context?: any,
 	options?: Options
 ): string;
-export function render(vnode: VNode, context?: any, options?: Options): string;
 
-export function shallowRender(
-	vnode: VNode,
-	context?: any,
-	options?: Options
-): string;
+declare namespace renderToStringPretty {
+	export function render(
+		vnode: VNode,
+		context?: any,
+		options?: Options
+	): string;
+
+	export function shallowRender(
+		vnode: VNode,
+		context?: any,
+		options?: Options
+	): string;
+}
+
+export = renderToStringPretty;
diff --git a/src/jsx.d.ts b/src/jsx.d.ts
index 752f3e55..40fd5384 100644
--- a/src/jsx.d.ts
+++ b/src/jsx.d.ts
@@ -10,15 +10,24 @@ interface Options {
 	skipFalseAttributes?: boolean;
 }
 
-export default function renderToStringPretty(
+declare function renderToStringPretty(
 	vnode: VNode,
 	context?: any,
 	options?: Options
 ): string;
-export function render(vnode: VNode, context?: any, options?: Options): string;
 
-export function shallowRender(
-	vnode: VNode,
-	context?: any,
-	options?: Options
-): string;
+declare namespace renderToStringPretty {
+	export function render(
+		vnode: VNode,
+		context?: any,
+		options?: Options
+	): string;
+
+	export function shallowRender(
+		vnode: VNode,
+		context?: any,
+		options?: Options
+	): string;
+}
+
+export = renderToStringPretty;