diff --git a/castle b/castle
index e019470..6c9a786 160000
--- a/castle
+++ b/castle
@@ -1 +1 @@
-Subproject commit e01947068718cad15ac3f5fa0dce97059d9157aa
+Subproject commit 6c9a786926ce0cebf94961bf70245c26e37f6ff7
diff --git a/src/Game.zig b/src/Game.zig
index f3b2637..2f0de07 100644
--- a/src/Game.zig
+++ b/src/Game.zig
@@ -780,10 +780,9 @@ fn render(self: *Game) !void {
     const camera_yscale = 1.0 / @tan(0.5 * self.player.vertical_fov_deg * std.math.rad_per_deg);
     const camera_xscale = camera_yscale / camera_aspect_ratio;
 
-    const matrix_ws_to_vs = vm.Matrix4x4.mulMatrixAffine(
-        .initRotation(camera_rotation), // TODO This is wrong - it should be correct when inverted
-        .initTranslation(camera_position.negate()),
-    );
+    const matrix_ws_to_vs = vm.Matrix4x4
+        .initTranslationRotation(camera_position, camera_rotation)
+        .inverseOrthonormal();
 
     // zig fmt: off
     const matrix_vs_to_cs = vm.Matrix4x4.init(