diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index a5ad9c4..78a0b14 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -214,7 +214,7 @@
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588326548623" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588326684451" />
     <property name="go.gopath.indexing.explicitly.defined" value="true" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
diff --git a/serve.py b/serve.py
index 2acd458..8c28a6e 100644
--- a/serve.py
+++ b/serve.py
@@ -212,7 +212,7 @@ class MyHandler(BaseHTTPRequestHandler):
 				with open(config.train_data_path, 'r') as f:
 					q = deque(f, config.time_step - 1)
 					df = pd.read_csv(StringIO(''.join(q)),
-					                 header=['job', 'model', 'time', 'utilCPU', 'utilGPU', 'pre', 'main', 'post'])
+					                 usecols=['job', 'model', 'time', 'utilCPU', 'utilGPU', 'pre', 'main', 'post'])
 
 					print(df)
 					df = df.append(data, ignore_index=True)