diff --git a/compat/server.browser.js b/compat/server.browser.js
index 9e8858e822..51c7a5d332 100644
--- a/compat/server.browser.js
+++ b/compat/server.browser.js
@@ -1,4 +1,11 @@
+import { renderToString } from 'preact-render-to-string';
+
 export {
 	renderToString,
 	renderToString as renderToStaticMarkup
 } from 'preact-render-to-string';
+
+export default {
+	renderToString,
+	renderToStaticMarkup: renderToString
+};
diff --git a/compat/server.mjs b/compat/server.mjs
index 9e8858e822..51c7a5d332 100644
--- a/compat/server.mjs
+++ b/compat/server.mjs
@@ -1,4 +1,11 @@
+import { renderToString } from 'preact-render-to-string';
+
 export {
 	renderToString,
 	renderToString as renderToStaticMarkup
 } from 'preact-render-to-string';
+
+export default {
+	renderToString,
+	renderToStaticMarkup: renderToString
+};