diff --git a/src/fixes/glint.js b/src/fixes/glint.js
index 1a8a5a9..269eb7b 100644
--- a/src/fixes/glint.js
+++ b/src/fixes/glint.js
@@ -39,6 +39,16 @@ export function fixGTSExtensions(contents) {
       path.node.argument.value = path.node.argument.value.replace(/\.gts$/, '');
     });
 
+  root
+    .find(j.ExportAllDeclaration)
+    .filter((path) => path.node.source?.value?.includes('.gts'))
+    .forEach((path) => {
+      // TODO: this may only be appropriate when
+      //       moduleResolution = "bundler"
+      // @ts-expect-error
+      path.node.source.value = path.node.source.value.replace(/\.gts$/, '');
+    });
+
   return root.toSource();
 }
 
diff --git a/src/fixes/glint.test.ts b/src/fixes/glint.test.ts
index 354939f..443da83 100644
--- a/src/fixes/glint.test.ts
+++ b/src/fixes/glint.test.ts
@@ -36,6 +36,14 @@ describe('fixGTSExtensions', () => {
     expect(result).toBe(`export { x } from "./foo";`);
   });
 
+  test('works on export star', () => {
+    let code = `export * from './component.gts';`;
+
+    let result = fixGTSExtensions(code);
+
+    expect(result).toBe(`export * from "./component";`);
+  });
+
   test('works on inline imports', () => {
     let code = stripIndent`
       import("@ember/component/template-only").TOC<import("./foo.gts").FooSignature>;