diff --git a/packages/vue-language-service/src/documentFeatures/format.ts b/packages/vue-language-service/src/documentFeatures/format.ts
index 6e86a2288..515f89743 100644
--- a/packages/vue-language-service/src/documentFeatures/format.ts
+++ b/packages/vue-language-service/src/documentFeatures/format.ts
@@ -227,8 +227,8 @@ export function register(context: DocumentServiceRuntimeContext) {
 					else {
 						// range format
 						formatRange = {
-							start: formatDocument.positionAt(startOffset + initialIndentBracket[1].length),
-							end: formatDocument.positionAt(endOffset + initialIndentBracket[1].length),
+							start: formatDocument.positionAt(startOffset + initialIndentBracket[0].length),
+							end: formatDocument.positionAt(endOffset + initialIndentBracket[0].length),
 						};
 					}
 				}