diff --git a/tools/linechk b/tools/linechk
index db57993..c46347b 100755
--- a/tools/linechk
+++ b/tools/linechk
@@ -1,9 +1,6 @@
 #!/bin/sh
-#
 # Code quality tool; check line length of each file in certain directories
 #
-# For a list of ignored patterns, see chk-linelen-ignores
-#
 #  Copyright (C) 2012, 2013 Mike Gerwitz
 #
 #  This file is part of GNU ease.js.
@@ -20,6 +17,8 @@
 #
 #  You should have received a copy of the GNU General Public License
 #  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# For a list of ignored patterns, see chk-linelen-ignores
 ##
 
 root="${1:-.}"
@@ -37,7 +36,7 @@ hideignores()
 # output all file with lines > 80 characters and exit successfully if grep has a
 # non-zero status code, indicating that no matches were found
 cd "$root" && \
-  find lib/ tools/ test/ doc/ README* LICENSE Makefile *.js \
+  find lib/ tools/ test/ doc/ README* Makefile.am configure.ac *.js \
     -type f -exec wc -L {} \; \
       | hideignores \
       | grep -v '^\([0-7][0-9]\?\|80\?\) ' \
diff --git a/tools/linechk-ignores b/tools/linechk-ignores
index 28ff635..fc1cf8c 100644
--- a/tools/linechk-ignores
+++ b/tools/linechk-ignores
@@ -1,9 +1,9 @@
 # any file matching any pattern in this file is ignored by the line check tool
 # (uses POSIX regular expressions, as is default in grep)
-doc/highlight.pack.js$
-doc/.*.html\?$
-.png$
-.dia$
-.jar$
-.info$
-Makefile
+doc/highlight.pack\.js$
+doc/.*\.html\?$
+doc/Makefile\(\.in\)\?$
+\.png$
+\.dia$
+\.jar$
+\.info$