diff --git a/cli/run/batchWarnings.ts b/cli/run/batchWarnings.ts
index 4b989d87ef8..e129a64f10a 100644
--- a/cli/run/batchWarnings.ts
+++ b/cli/run/batchWarnings.ts
@@ -237,7 +237,13 @@ const deferredHandlers: {
 	UNUSED_EXTERNAL_IMPORT(warnings) {
 		title('Unused external imports');
 		for (const warning of warnings) {
-			stderr(`${warning.names} imported from external module '${warning.source}' but never used`);
+			stderr(
+				`${warning.names} imported from external module '${warning.source}' but never used${
+					warning.sources
+						? ' in ' + printQuotedStringList(warning.sources.map(id => relativeId(id)))
+						: ''
+				}`
+			);
 		}
 	}
 };
diff --git a/test/cli/samples/warn-import-export/_config.js b/test/cli/samples/warn-import-export/_config.js
index c0c549251e3..4a7e9741762 100644
--- a/test/cli/samples/warn-import-export/_config.js
+++ b/test/cli/samples/warn-import-export/_config.js
@@ -16,7 +16,7 @@ module.exports = {
 		assertIncludes(
 			stderr,
 			'(!) Unused external imports\n' +
-				"default imported from external module 'external' but never used\n"
+				`default imported from external module 'external' but never used in "main.js"\n`
 		);
 		assertIncludes(
 			stderr,