diff --git a/doc/org.texi b/doc/org.texi
index dee47c877..9c6ba40fb 100644
--- a/doc/org.texi
+++ b/doc/org.texi
@@ -263,7 +263,7 @@
 @copying
 This manual is for Org version @value{VERSION}.
 
-Copyright @copyright{} 2004-2012 Free Software Foundation, Inc.
+Copyright @copyright{} 2004--2012 Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
diff --git a/doc/orgguide.texi b/doc/orgguide.texi
index 6c8c7a18d..4a944ddf3 100644
--- a/doc/orgguide.texi
+++ b/doc/orgguide.texi
@@ -39,7 +39,7 @@
 @end macro
 @copying
 
-Copyright @copyright{} 2010-2012 Free Software Foundation
+Copyright @copyright{} 2010--2012 Free Software Foundation
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document