diff --git a/piet-coregraphics/src/lib.rs b/piet-coregraphics/src/lib.rs
index 6e1e6c75..4343c2d8 100644
--- a/piet-coregraphics/src/lib.rs
+++ b/piet-coregraphics/src/lib.rs
@@ -392,7 +392,7 @@ impl<'a> RenderContext for CoreGraphicsContext<'a> {
     fn capture_image_area(&mut self, src_rect: impl Into<Rect>) -> Result<Self::Image, Error> {
         let src_rect = src_rect.into();
 
-        // When creating a CoreGraphicsContext, we a transformation matrix is applied to map
+        // When creating a CoreGraphicsContext, a transformation matrix is applied to map
         // between piet's coordinate system and CoreGraphic's coordinate system
         // (see [`CoreGraphicsContext::new_impl`] for details). Since the `src_rect` we receive
         // as parameter is in piet's coordinate system, we need to first convert it to the CG one,
diff --git a/piet/src/samples/mod.rs b/piet/src/samples/mod.rs
index 31f5d371..4c7f1657 100644
--- a/piet/src/samples/mod.rs
+++ b/piet/src/samples/mod.rs
@@ -32,7 +32,7 @@ mod picture_16;
 type BoxErr = Box<dyn std::error::Error>;
 
 /// The total number of samples in this module.
-pub const SAMPLE_COUNT: usize = 16;
+pub const SAMPLE_COUNT: usize = 17;
 
 /// file we save an os fingerprint to
 pub const GENERATED_BY: &str = "GENERATED_BY";