diff --git a/examples/style/hex-layout.sky b/examples/style/hex-layout.sky
index 695c2dd402..1d98c1d4c4 100644
--- a/examples/style/hex-layout.sky
+++ b/examples/style/hex-layout.sky
@@ -84,7 +84,7 @@
      }
      return super(height); // does the equivalent of getIntrinsicWidth() above, applying min-height etc
    }
-   function paintChildren(RenderingSurface canvas) {
+   function paintChildren(canvas) {
      let width = this.node.width;
      let cellCount = this.node.getProperty('beehive-count');
      let cellDim = width / cellCount;