diff --git a/The-DZI-File-Format.md b/The-DZI-File-Format.md
index 0954f23..69723a9 100644
--- a/The-DZI-File-Format.md
+++ b/The-DZI-File-Format.md
@@ -4,7 +4,7 @@ When creating a DZI image, you specify a size, format, and overlap. The [convers
 
 Note that tile overlaps are on both sides of the join, so a one pixel overlap (for example) means tiles 0_0 and 1_0 have two columns of pixels in common. 
 
-The tile size is usually chosen so that non-edge tiles are a power of two along the side. With overlap one and tile size 254, tile 0_0 will be 255x255, but all no-edge tiles will be 256x256.
+The tile size is usually chosen so that non-edge tiles are a power of two along the side. With overlap one and tile size 254, tile 0_0 will be 255x255, but all non-edge tiles will be 256x256.
 
 Tiles are written even if they contribute no new pixels to the image. With overlap one, for example, you can have a two-pixel edge tile which simply repeats pixels in the previous tile.