Fixed typo.
diff --git a/README.txt b/README.txt
index b99bf8e..e6d791d 100644
--- a/README.txt
+++ b/README.txt
@@ -17,7 +17,7 @@
   (Tcl/TK). With a language interface, use ImageMagick to modify or create
   images dynamically and automagically.
 
-  ImageMagick utiilizes multiple computational threads to increase performance
+  ImageMagick utilizes multiple computational threads to increase performance
   and can read, process, or write mega-, giga-, or tera-pixel image sizes.
   
   ImageMagick is free software delivered as a ready-to-run binary distribution