diff --git a/enforcement-case-studies.tex b/enforcement-case-studies.tex
index c154cc9544af78d91815cc8dda47d839f59ffe98..b3b95080e51ef16dc95648aa3c50b09138edb89f 100644
--- a/enforcement-case-studies.tex
+++ b/enforcement-case-studies.tex
@@ -245,7 +245,7 @@ compliance work.
 Too often, case studies examine failure and mistakes.  Indeed, most of the
 chapters that follow herein will consider the myriad difficulties discovered
 in community-oriented GPL enforcement for the last two decades.  However, to
-begin, we offer a study in how copyleft compliance done correctly.
+begin, we offer a study in how copyleft compliance can be done correctly.
 
 This example is, in fact, more than ten years in the making.  Since almost
 the inception of for-profit corporate adoption of Free Software, companies
