diff --git a/CD-Image-Support.md b/CD-Image-Support.md
index b5c85be..92ff9d1 100644
--- a/CD-Image-Support.md
+++ b/CD-Image-Support.md
@@ -10,7 +10,7 @@ Files must be named with `CD` instead of `HD` - you may leave off the block size
 
 `.iso`, `.bin`, most `.toast`
 
-## Know good Macintosh Bootable images
+## Known good Macintosh Bootable images
 
 ### Apple Legacy Recovery CD