diff --git a/lib/chunky_png/canvas.rb b/lib/chunky_png/canvas.rb
index b862727..8737097 100644
--- a/lib/chunky_png/canvas.rb
+++ b/lib/chunky_png/canvas.rb
@@ -74,7 +74,7 @@ class Canvas
     # @overload initialize(width, height, initial)
     #   @param [Integer] width The width in pixels of this canvas
     #   @param [Integer] height The height in pixels of this canvas
-    #   @param [Array<Integer>] initial The initial pizel values. Must be an
+    #   @param [Array<Integer>] initial The initial pixel values. Must be an
     #     array with <tt>width * height</tt> elements.
     def initialize(width, height, initial = ChunkyPNG::Color::TRANSPARENT)
       @width, @height = width, height