diff --git a/Readme.md b/Readme.md
index 459b1d1..67ec683 100644
--- a/Readme.md
+++ b/Readme.md
@@ -73,7 +73,7 @@ and may have been abandoned once the basic features were working
 (setting pixels on a display, etc.), but they should serve as
 a good starting point for a wide variety of peripherals.
 
-The code base is definately imperfect, and some growing pains and faulty early
+The code base is definitely imperfect, and some growing pains and faulty early
 assumptions are evident throughout, but it hopefully at least
 partially fulfills the goal of providing a genuinely open source
 code base for the LPC1343 and GCC with no dependencies on any one