diff --git a/ets2panda/driver/build_system/src/build/base_mode.ts b/ets2panda/driver/build_system/src/build/base_mode.ts
index abeb5ba7b8533042cbb7196ce9dc7d0e6e369515..b2cc884429621d8bbd3dc2ee93b97c1175cff8f5 100644
--- a/ets2panda/driver/build_system/src/build/base_mode.ts
+++ b/ets2panda/driver/build_system/src/build/base_mode.ts
@@ -143,7 +143,7 @@ export abstract class BaseMode {
     this.isBuildConfigModified = buildConfig.isBuildConfigModified as boolean | undefined;
     this.hasCleanWorker = false;
     this.byteCodeHar = buildConfig.byteCodeHar as boolean;
-    this.es2pandaMode = buildConfig?.es2pandaMode ?? ES2PANDA_MODE.RUN;
+    this.es2pandaMode = buildConfig?.es2pandaMode ?? ES2PANDA_MODE.RUN_PARALLEL;
     this.skipDeclCheck = buildConfig?.skipDeclCheck as boolean ?? true;
   }