diff --git a/paddle/gserver/gradientmachines/MultiGradientMachine.cpp b/paddle/gserver/gradientmachines/MultiGradientMachine.cpp
index e7db487e7e896183003eb744aa8304f52b09d76c..faadca69abd76e96b31103da8af53eb9e9cddc43 100644
--- a/paddle/gserver/gradientmachines/MultiGradientMachine.cpp
+++ b/paddle/gserver/gradientmachines/MultiGradientMachine.cpp
@@ -358,6 +358,7 @@ void MultiGradientMachine::getOutArgs(std::vector<Argument>* outArgs,
     REGISTER_TIMER("waitOutArgs");
     thread->waitOutArgsReady();
   }
+
   // outArgs_.size() only need to be calculated once.
   static int size = threads_[threads_.size() - 1]->getOutArgs().size();
   outArgs_.resize(size);
@@ -574,9 +575,9 @@ void TrainerThread::forward() {
     REGISTER_TIMER("thread_forward");
     if (batchSize_ > 0) {
       gradientMachine_->forward(
-        inArgs_, &outArgs_, multiMachine_->getPassType());
+          inArgs_, &outArgs_, multiMachine_->getPassType());
     } else {
-       outArgs_.clear();
+      outArgs_.clear();
     }
   }
   outArgsReadySem_.post();
diff --git a/paddle/gserver/gradientmachines/MultiGradientMachine.h b/paddle/gserver/gradientmachines/MultiGradientMachine.h
index 31bb28b6fedc901e502371b3801e1a5afe32a932..70203bbb97fe79d72fbc6bd2b5d427cb1de7b61f 100644
--- a/paddle/gserver/gradientmachines/MultiGradientMachine.h
+++ b/paddle/gserver/gradientmachines/MultiGradientMachine.h
@@ -470,7 +470,6 @@ protected:
 
   /// indicate whether inArgs is copied before forward()
   bool inArgsCopied_;
-
   int batchSize_;
 };