diff --git a/Makefile b/Makefile
index 42c83d5e..1d2e6398 100644
--- a/Makefile
+++ b/Makefile
@@ -22,17 +22,17 @@ rpm: all_games_html rules mo
 	python setup.py bdist_rpm
 
 all_games_html:
-	./scripts/all_games.py > docs/all_games.html
+	PYTHONPATH=`pwd` ./scripts/all_games.py > docs/all_games.html
 
 rules:
-	(cd html-src && ./gen-html.py)
+	export PYTHONPATH=`pwd`; (cd html-src && ./gen-html.py)
 	cp -r html-src/images html-src/html
 	rm -rf data/html
 	mv html-src/html data
 
 pot:
-	./scripts/all_games.py gettext > po/games.pot
-	./scripts/pygettext.py -k n_ --ngettext-keyword ungettext -o po/pysol-1.pot $(PYSOLLIB_FILES)
+	PYTHONPATH=`pwd` ./scripts/all_games.py gettext > po/games.pot
+	PYTHONPATH=`pwd` ./scripts/pygettext.py -k n_ --ngettext-keyword ungettext -o po/pysol-1.pot $(PYSOLLIB_FILES)
 	xgettext -L C --keyword=N_ -o po/pysol-2.pot data/glade-translations
 	msgcat po/pysol-1.pot po/pysol-2.pot > po/pysol.pot
 	rm -f po/pysol-1.pot po/pysol-2.pot
diff --git a/html-src/gen-html.py b/html-src/gen-html.py
index 8993f44c..21bedd37 100755
--- a/html-src/gen-html.py
+++ b/html-src/gen-html.py
@@ -16,10 +16,10 @@ pysollib_dir = '../'
 __builtin__._ = lambda x: x
 __builtin__.n_ = lambda x: x
 
-eval('import pysollib.games')
-eval('import pysollib.games.mahjongg')
-eval('import pysollib.games.ultra')
-eval('import pysollib.games.special')
+import pysollib.games
+import pysollib.games.mahjongg
+import pysollib.games.ultra
+import pysollib.games.special
 
 try:
     os.mkdir('html')
diff --git a/pysollib/mygettext.py b/pysollib/mygettext.py
index 85bc3cc9..944cedb4 100644
--- a/pysollib/mygettext.py
+++ b/pysollib/mygettext.py
@@ -1,6 +1,3 @@
-#!/usr/bin/env python
-# -*- mode: python; coding: utf-8; -*-
-
 import gettext
 import sys
 
diff --git a/scripts/all_games.py b/scripts/all_games.py
index 71c3e233..4f4e5bed 100755
--- a/scripts/all_games.py
+++ b/scripts/all_games.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # -*- mode: python; coding: koi8-r; -*-
 #
 
diff --git a/tests/style/py-flake8.t b/tests/style/py-flake8.t
index f0f923fc..ea10167b 100644
--- a/tests/style/py-flake8.t
+++ b/tests/style/py-flake8.t
@@ -12,6 +12,7 @@ use String::ShellQuote qw/ shell_quote /;
 my %skip = (
     map { $_ => 1 }
         qw(
+        html-src/gen-html.py
         pysollib/games/__init__.py
         pysollib/games/mahjongg/__init__.py
         pysollib/games/mahjongg/mahjongg1.py