diff --git a/atom/browser/native_window.cc b/atom/browser/native_window.cc
index e345c6ecb250..86a402b766b5 100644
--- a/atom/browser/native_window.cc
+++ b/atom/browser/native_window.cc
@@ -219,7 +219,9 @@ gfx::Point NativeWindow::GetPosition() {
 }
 
 void NativeWindow::SetContentSize(const gfx::Size& size, bool animate) {
-  SetSize(ContentBoundsToWindowBounds(gfx::Rect(size)).size(), animate);
+  gfx::Rect bounds = GetContentBounds();
+  bounds.set_size(size);
+  SetSize(ContentBoundsToWindowBounds(bounds).size(), animate);
 }
 
 gfx::Size NativeWindow::GetContentSize() {