diff --git a/packages/schema/src/config/common.ts b/packages/schema/src/config/common.ts
index a8d50cde5a..5940f1c2a9 100644
--- a/packages/schema/src/config/common.ts
+++ b/packages/schema/src/config/common.ts
@@ -421,7 +421,7 @@ export default defineUntypedSchema({
         '~~': rootDir,
         '@@': rootDir,
         [basename(assetsDir)]: join(srcDir, assetsDir),
-        [basename(publicDir)]: join(srcDir, publicDir),
+        [basename(publicDir)]: resolve(srcDir, publicDir),
         ...val,
       }
     },