diff --git a/packages/astro/src/core/build/generate.ts b/packages/astro/src/core/build/generate.ts
index cced4547948a4..d245233a01e5a 100644
--- a/packages/astro/src/core/build/generate.ts
+++ b/packages/astro/src/core/build/generate.ts
@@ -311,6 +311,9 @@ async function generatePath(
 		scripts,
 		renderers,
 		async resolve(specifier: string) {
+			if (specifier.endsWith('.jsx')) {
+				specifier = specifier.slice(0, -4);
+			}
 			const hashedFilePath = internals.entrySpecifierToBundleMap.get(specifier);
 			if (typeof hashedFilePath !== 'string') {
 				// If no "astro:scripts/before-hydration.js" script exists in the build,