diff --git a/atom/browser/api/atom_api_download_item.cc b/atom/browser/api/atom_api_download_item.cc
index aa1e719f485..2e3068a5d3c 100644
--- a/atom/browser/api/atom_api_download_item.cc
+++ b/atom/browser/api/atom_api_download_item.cc
@@ -41,11 +41,11 @@ void DownloadItem::OnDownloadDestroyed(content::DownloadItem* download) {
 
 bool DownloadItem::IsDestroyed() const {
   return download_item_ == nullptr;
-};
+}
 
 void DownloadItem::Destroy() {
   download_item_ = nullptr;
-};
+}
 
 int64 DownloadItem::GetReceivedBytes() {
   return download_item_->GetReceivedBytes();
diff --git a/atom/browser/api/atom_api_download_item.h b/atom/browser/api/atom_api_download_item.h
index 31546c1c62f..ca87a14ae80 100644
--- a/atom/browser/api/atom_api_download_item.h
+++ b/atom/browser/api/atom_api_download_item.h
@@ -19,7 +19,7 @@ namespace api {
 class DownloadItem : public mate::TrackableObject<DownloadItem>,
                      public content::DownloadItem::Observer {
  public:
-  DownloadItem(content::DownloadItem* download_item);
+  explicit DownloadItem(content::DownloadItem* download_item);
   ~DownloadItem();
   static mate::Handle<DownloadItem> Create(v8::Isolate* isolate,
                                            content::DownloadItem* item);