diff --git a/atom/browser/native_window_views.cc b/atom/browser/native_window_views.cc
index 9b4c27ead88..e97a1f3c410 100644
--- a/atom/browser/native_window_views.cc
+++ b/atom/browser/native_window_views.cc
@@ -793,7 +793,7 @@ bool NativeWindowViews::CanMaximize() const {
 }
 
 bool NativeWindowViews::CanMinimize() const {
-#ifdef(OS_WIN)
+#if defined(OS_WIN)
   return minimizable_;
 #elif defined(USE_X11)
   return true;