diff --git a/examples/cosmic/src/window/demo.rs b/examples/cosmic/src/window/demo.rs
index 20025441..713ec5c5 100644
--- a/examples/cosmic/src/window/demo.rs
+++ b/examples/cosmic/src/window/demo.rs
@@ -40,7 +40,7 @@ impl From<&ThemeType> for ThemeVariant {
             ThemeType::HighContrastDark => ThemeVariant::HighContrastDark,
             ThemeType::HighContrastLight => ThemeVariant::HighContrastLight,
             ThemeType::Custom(_) => ThemeVariant::Custom,
-            ThemeType::System(_) => ThemeVariant::System,
+            ThemeType::System { .. } => ThemeVariant::System,
         }
     }
 }