diff --git a/lib/lyx2lyx/lyx_1_6.py b/lib/lyx2lyx/lyx_1_6.py
index fb65bbf977..2d0964c3af 100644
--- a/lib/lyx2lyx/lyx_1_6.py
+++ b/lib/lyx2lyx/lyx_1_6.py
@@ -14,7 +14,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
 """ Convert files to the file format generated by lyx 1.6"""
 
@@ -51,7 +51,7 @@ def find_end_of_inset(lines, i):
 # DO NOT do this:
 #   document.body[i] = wrap_insert_ert(...)
 # wrap_into_ert may returns a multiline string, which should NOT appear
-# in document.body. Insetad, do something like this:
+# in document.body. Instead, do something like this:
 #   subst = wrap_inset_ert(...)
 #   subst = subst.split('\n')
 #   document.body[i:i+1] = subst
@@ -793,7 +793,7 @@ def convert_flex(document):
         document.body[i] = document.body[i].replace('\\begin_inset CharStyle', '\\begin_inset Flex')
 
 def revert_flex(document):
-    "Convert Flex to CharStyle"
+    "Revert Flex to CharStyle"
     i = 0
     while True:
         i = find_token(document.body, "\\begin_inset Flex", i)
@@ -1600,7 +1600,7 @@ def convert_macro_global(document):
     "Remove TeX code command \global when it is in front of a macro"
     # math macros are nowadays already defined \global, so that an additional
     # \global would make the document uncompilable, see
-    # http://bugzilla.lyx.org/show_bug.cgi?id=5371
+    # http://www.lyx.org/trac/ticket/5371
     # We're looking for something like this:
     # \begin_inset ERT
     # status collapsed
@@ -2879,7 +2879,7 @@ def update_apa_styles(document):
 
 def convert_paper_sizes(document):
     ' exchange size options legalpaper and executivepaper to correct order '
-    # routine is needed to fix http://bugzilla.lyx.org/show_bug.cgi?id=4868
+    # routine is needed to fix http://www.lyx.org/trac/ticket/4868
     i = 0
     j = 0
     i = find_token(document.header, "\\papersize executivepaper", 0)