diff --git a/Terminal.Gui/ConsoleDrivers/CursesDriver/binding.cs b/Terminal.Gui/ConsoleDrivers/CursesDriver/binding.cs
index a1dc3386e2..16caaa05ca 100644
--- a/Terminal.Gui/ConsoleDrivers/CursesDriver/binding.cs
+++ b/Terminal.Gui/ConsoleDrivers/CursesDriver/binding.cs
@@ -380,7 +380,7 @@ private static nint get_ptr (string key)
 
     private static void LoadMethods ()
     {
-        string [] libs = OperatingSystem.IsMacOS
+        string [] libs = OperatingSystem.IsMacOS()
                              ? ["libncurses.dylib"]
                              : ["libncursesw.so.6", "libncursesw.so.5"];
         var attempts = 1;