diff --git a/gpl-lgpl.tex b/gpl-lgpl.tex
index 469402e..cb38c52 100644
--- a/gpl-lgpl.tex
+++ b/gpl-lgpl.tex
@@ -394,7 +394,7 @@ automatically by the author when she fixes the software in a tangible
 medium.  In the software world, this usually means typing the source code
 of the software into a file.
 
-Imagine if authors could truly disclaim those default control of copyright
+Imagine if authors could truly disclaim those default controls of copyright
 law.  If so, the software is in the public domain --- no longer covered by
 copyright.  Since copyright law is the construction allowing for most
 restrictions on software (i.e., prohibition of copying, modification, and