diff --git a/atom/app/uv_task_runner.cc b/atom/app/uv_task_runner.cc
index f49ba259bac8..097cc3bcda18 100644
--- a/atom/app/uv_task_runner.cc
+++ b/atom/app/uv_task_runner.cc
@@ -37,7 +37,7 @@ bool UvTaskRunner::PostNonNestableDelayedTask(
     const tracked_objects::Location& from_here,
     const base::Closure& task,
     base::TimeDelta delay) {
-  return PostDelayedTask(from_here, task, delay);;
+  return PostDelayedTask(from_here, task, delay);
 }
 
 // static
diff --git a/atom/browser/api/atom_api_web_contents.cc b/atom/browser/api/atom_api_web_contents.cc
index 3f39519a3f7b..43ce556264e9 100644
--- a/atom/browser/api/atom_api_web_contents.cc
+++ b/atom/browser/api/atom_api_web_contents.cc
@@ -992,7 +992,7 @@ void WebContents::SendInputEvent(v8::Isolate* isolate,
       return;
     }
   } else if (blink::WebInputEvent::isKeyboardEventType(type)) {
-    content::NativeWebKeyboardEvent keyboard_event;;
+    content::NativeWebKeyboardEvent keyboard_event;
     if (mate::ConvertFromV8(isolate, input_event, &keyboard_event)) {
       host->ForwardKeyboardEvent(keyboard_event);
       return;
diff --git a/atom/renderer/atom_render_view_observer.cc b/atom/renderer/atom_render_view_observer.cc
index 931913dd75d0..bf2e1a70b788 100644
--- a/atom/renderer/atom_render_view_observer.cc
+++ b/atom/renderer/atom_render_view_observer.cc
@@ -88,7 +88,7 @@ void AtomRenderViewObserver::DidCreateDocumentElement(
 
   // Read --zoom-factor from command line.
   std::string zoom_factor_str = base::CommandLine::ForCurrentProcess()->
-      GetSwitchValueASCII(switches::kZoomFactor);;
+      GetSwitchValueASCII(switches::kZoomFactor);
   if (zoom_factor_str.empty())
     return;
   double zoom_factor;