diff --git a/packages/language-service/src/language-plugin.ts b/packages/language-service/src/language-plugin.ts
index c8bd09f..5ed4856 100644
--- a/packages/language-service/src/language-plugin.ts
+++ b/packages/language-service/src/language-plugin.ts
@@ -191,19 +191,17 @@ function* getTempblotEmbeddedCodes(
       });
     });
 
-    if (tsMappings.length > 0) {
-      yield {
-        id: "combined_context",
-        languageId: "typescript",
-        snapshot: {
-          getText: (start, end) => combinedText.substring(start, end),
-          getLength: () => combinedText.length,
-          getChangeRange: () => undefined,
-        },
-        mappings: tsMappings,
-        embeddedCodes: [],
-      };
-    }
+    yield {
+      id: "combined_context",
+      languageId: "typescript",
+      snapshot: {
+        getText: (start, end) => combinedText.substring(start, end),
+        getLength: () => combinedText.length,
+        getChangeRange: () => undefined,
+      },
+      mappings: tsMappings,
+      embeddedCodes: [],
+    };
 
     if (!output) {
       return;
diff --git a/packages/language-service/tests/language-plugin.spec.ts b/packages/language-service/tests/language-plugin.spec.ts
index fe9a8b7..1730ace 100644
--- a/packages/language-service/tests/language-plugin.spec.ts
+++ b/packages/language-service/tests/language-plugin.spec.ts
@@ -52,6 +52,28 @@ test("creates output embedded code for output-only files", () => {
     .toContain('{"value": null}');
 });
 
+test("creates empty TypeScript embedded code for output-only files without interpolations", () => {
+  const source = `<output lang="json">
+{
+    "test": "a"
+}
+</output>`;
+
+  const virtualCode = createVirtualCode(source);
+  const combinedContext = virtualCode.embeddedCodes.find(
+    (code) => code.id === "combined_context",
+  );
+  const outputJson = virtualCode.embeddedCodes.find(
+    (code) => code.id === "output_json",
+  );
+
+  expect(combinedContext?.snapshot.getText(0, combinedContext.snapshot.getLength()))
+    .toBe("export {}; // Make this file a module\n\n");
+  expect(combinedContext?.mappings).toEqual([]);
+  expect(outputJson?.snapshot.getText(0, outputJson.snapshot.getLength()))
+    .toContain('"test": "a"');
+});
+
 test("does not report missing-block diagnostics for single-section files", () => {
   const setupOnlyDiagnostics = getTempblotRootDiagnostics(
     parseTempblotRoot("<setup></setup>"),