diff --git a/atom/browser/api/atom_api_window.cc b/atom/browser/api/atom_api_window.cc
index 8872a0e7f6ca..7ab03181993c 100644
--- a/atom/browser/api/atom_api_window.cc
+++ b/atom/browser/api/atom_api_window.cc
@@ -433,7 +433,7 @@ void Window::Print(mate::Arguments* args) {
 void Window::PrintToPDF(mate::Arguments* args) {
   mate::Dictionary options;
   base::Callback<void(int)> callback;
-  if (!(args->Length() == 1 && !args->GetNext(&callback)) &&
+  if (!(args->Length() == 1 && args->GetNext(&callback)) &&
       !(args->Length() == 2 && args->GetNext(&options)
                             && args->GetNext(&callback))) {
     args->ThrowError();