diff --git a/packages/plugin-dts/src/utils.ts b/packages/plugin-dts/src/utils.ts
index 8e0d97e5f..c1185b2ac 100644
--- a/packages/plugin-dts/src/utils.ts
+++ b/packages/plugin-dts/src/utils.ts
@@ -312,7 +312,7 @@ export async function redirectDtsImports(
         }
       }
 
-      code.overwrite(start, end, redirectImportPath);
+      code.overwrite(start, end, normalize(redirectImportPath));
     } catch (err) {
       logger.debug(err);
     }