Add missing checks or attributes to windows.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gui/windows/didyouknowwindow.h b/src/gui/windows/didyouknowwindow.h
index d02d627f4..b69ca882e 100644
--- a/src/gui/windows/didyouknowwindow.h
+++ b/src/gui/windows/didyouknowwindow.h
@@ -68,11 +68,11 @@ class DidYouKnowWindow final : public Window,
     private:
         void loadFile(const int num);
 
-        BrowserBox *mBrowserBox;
-        ScrollArea *mScrollArea;
-        Button *mButtonPrev;
-        Button *mButtonNext;
-        CheckBox *mOpenAgainCheckBox;
+        BrowserBox *mBrowserBox A_NONNULLPOINTER;
+        ScrollArea *mScrollArea A_NONNULLPOINTER;
+        Button *mButtonPrev A_NONNULLPOINTER;
+        Button *mButtonNext A_NONNULLPOINTER;
+        CheckBox *mOpenAgainCheckBox A_NONNULLPOINTER;
 };
 
 extern DidYouKnowWindow *didYouKnowWindow;