diff --git a/Makefile.am b/Makefile.am
index 1238420c01231074bdbecb072b9318c9472574b6..c2b3812d57b3a10ce4d116eac6b4c8d6e4eab2f0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,13 +25,31 @@ EXTRA_DIST = COPYRIGHT LICENSE \
 dist_doc_DATA = README COPYRIGHT LICENSE AUTHORS DEPENDENCIES
 
 # main binary
-dist_bin_SCRIPTS = bin/is
+dist_bin_SCRIPTS = bin/is installsystems/__init__.py
 
 # python library
 installsystemsdir=$(pythondir)/installsystems
-installsystems_PYTHON = installsystems/*.py
-
-CLEANFILES = $(bin_SCRIPTS)
+installsystems_PYTHON = \
+	installsystems/__init__.py \
+	installsystems/config.py \
+	installsystems/database.py \
+	installsystems/exception.py \
+	installsystems/image.py \
+	installsystems/printer.py \
+	installsystems/repository.py \
+	installsystems/tarball.py \
+	installsystems/template.py \
+	installsystems/tools.py
+
+do_substitution = $(SED) -e 's,[@]pythondir[@],$(pythondir),g' \
+	-e 's,[@]PACKAGE[@],$(PACKAGE),g' \
+	-e 's,[@]VERSION[@],$(VERSION),g'
+
+installsystems/__init__.py: installsystems/__init__.py.in
+	$(do_substitution) < $(srcdir)/$< > $@
+
+
+CLEANFILES = $(bin_SCRIPTS) installsystems/__init__.py
 
 install-exec-hook:
 	ln -fs is $(DESTDIR)$(bindir)/installsystems
diff --git a/configure.ac b/configure.ac
index b0c920060ace552faaf8cd827ed8e615ed5e94c7..014495caaab75b9f89b524a7598e5cd7c710bf84 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,4 +35,6 @@ AC_ARG_WITH([zshcompdir],
 )
 AC_SUBST([zshcompdir], [$with_zshcompdir])
 
+AC_PROG_SED
+
 AC_OUTPUT
diff --git a/installsystems/__init__.py b/installsystems/__init__.py.in
similarity index 97%
rename from installsystems/__init__.py
rename to installsystems/__init__.py.in
index e0843369f7b8dd59e0dc937340504500e975fcf3..7c2757cecb562dd212b66d7d8680b4243a0f6bf7 100644
--- a/installsystems/__init__.py
+++ b/installsystems/__init__.py.in
@@ -21,7 +21,7 @@ InstallSystems module
 '''
 
 canonical_name="installsystems"
-version = "9"
+version = "@VERSION@"
 verbosity = 1 # 0: quiet, 1: normal, 2: debug
 
 __all__ = []