diff --git a/wadsrc/static/zscript/ui/menu/messagebox.zs b/wadsrc/static/zscript/ui/menu/messagebox.zs
index ed7f271723..3f9669e162 100644
--- a/wadsrc/static/zscript/ui/menu/messagebox.zs
+++ b/wadsrc/static/zscript/ui/menu/messagebox.zs
@@ -65,8 +65,8 @@ class MessageBoxMenu : Menu
 
 		if (!generic_ui)
 		{
-			if (SmallFont.CanPrint(message) && SmallFont.CanPrint("$TXT_YES") && SmallFont.CanPrint("$TXT_NO")) textFont = SmallFont;
-			else if (OriginalSmallFont.CanPrint(message) && OriginalSmallFont.CanPrint("$TXT_YES") && OriginalSmallFont.CanPrint("$TXT_NO")) textFont = OriginalSmallFont;
+			if (SmallFont && SmallFont.CanPrint(message) && SmallFont.CanPrint("$TXT_YES") && SmallFont.CanPrint("$TXT_NO")) textFont = SmallFont;
+			else if (OriginalSmallFont && OriginalSmallFont.CanPrint(message) && OriginalSmallFont.CanPrint("$TXT_YES") && OriginalSmallFont.CanPrint("$TXT_NO")) textFont = OriginalSmallFont;
 		}
 		
 		if (!textFont)