diff --git a/collects/schemeunit/scribblings/philosophy.scrbl b/collects/schemeunit/scribblings/philosophy.scrbl
index 7215fb2..9095c90 100644
--- a/collects/schemeunit/scribblings/philosophy.scrbl
+++ b/collects/schemeunit/scribblings/philosophy.scrbl
@@ -110,7 +110,7 @@ which is the ancestor of SchemeUnit and the most widely used
 frameworks in Java, .Net, Python, and Ruby, and many other
 languages. That this is insufficient for all users is
 apparent if one considers the proliferation of ``simpler''
-testing frameworks in Scheme such as SRFI-78, or the the
+testing frameworks in Scheme such as SRFI-78, or the
 practice of beginner programmers. Unfortunately these
 simpler methods are inadequate for testing larger
 systems. To the best of my knowledge SchemeUnit is the only