diff --git a/crates/fj-viewer/src/viewer.rs b/crates/fj-viewer/src/viewer.rs
index e46d415d2..fc8b7a713 100644
--- a/crates/fj-viewer/src/viewer.rs
+++ b/crates/fj-viewer/src/viewer.rs
@@ -178,7 +178,7 @@ impl ViewerWindow {
     /// Draw the graphics
     pub fn draw(&mut self) {
         let size_is_invalid = {
-            let size = self.window.size();
+            let size = self.window.inner.inner_size();
             size.width == 0 || size.height == 0
         };
         if size_is_invalid {
diff --git a/crates/fj-viewer/src/window.rs b/crates/fj-viewer/src/window.rs
index 456f7c5e5..a9d59a34a 100644
--- a/crates/fj-viewer/src/window.rs
+++ b/crates/fj-viewer/src/window.rs
@@ -5,17 +5,6 @@ pub struct Window {
     pub inner: Arc<winit::window::Window>,
 }
 
-impl Window {
-    pub fn size(&self) -> WindowSize {
-        let size = self.inner.inner_size();
-
-        WindowSize {
-            width: size.width,
-            height: size.height,
-        }
-    }
-}
-
 /// Cursor position in normalized coordinates (-1 to +1)
 ///
 /// The center of the screen is at (0, 0). The aspect ratio is taken into