diff --git a/packages/core/src/plugins/core.ts b/packages/core/src/plugins/core.ts
index 8b84c40ea..8e126a2cf 100644
--- a/packages/core/src/plugins/core.ts
+++ b/packages/core/src/plugins/core.ts
@@ -668,7 +668,10 @@ export class CorePlugin extends Plugin<CoreOptions> implements CoreOptions {
       return {
         globals,
         additionalModules,
-        script: { filePath: STRING_SCRIPT_PATH, code: this.script },
+        script: {
+          filePath: this.scriptPath ?? STRING_SCRIPT_PATH,
+          code: this.script,
+        },
       };
     }