diff --git a/.gitignore b/.gitignore
index be454c1..71a963b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,8 +46,10 @@ doc/man
 src/ctools-setup
 pyext/build/
 pyext/setup.py
+pyext/ctools/__init__.py
 pyext/ctools/tools.py
 pyext/ctools/tools_wrap.cpp
+cscripts/__init__.py
 src/ctbin/ctbin
 src/ctlike/ctlike
 src/cttsmap/cttsmap
diff --git a/configure.ac b/configure.ac
index 5424b7a..464027d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -920,10 +920,12 @@ AC_CONFIG_FILES([Makefile
                  test/test_cscripts.sh
                  pyext/Makefile
                  pyext/setup.py
+                 pyext/ctools/__init__.py
+                 cscripts/__init__.py
+                 cscripts/Makefile
                  caldb/Makefile
                  models/Makefile
                  examples/Makefile
-                 cscripts/Makefile
                  ctools.pc
                  testconf.sh],
                 [if test -f test/test_cscripts.sh; then chmod +x test/test_cscripts.sh; fi;
diff --git a/cscripts/__init__.py b/cscripts/__init__.py.in
index c8491d0..4418a5d 100644
--- a/cscripts/__init__.py
+++ b/cscripts/__init__.py.in
@@ -53,3 +53,6 @@ def test():
     Run cscripts tests.
     """
     print("No cscripts unit tests have been implemented so far.")
+
+# Add version
+__version__ = '@PACKAGE_VERSION@'
\ No newline at end of file
diff --git a/pyext/ctools/__init__.py b/pyext/ctools/__init__.py.in
index d8626e7..02a2f05 100644
--- a/pyext/ctools/__init__.py
+++ b/pyext/ctools/__init__.py.in
@@ -34,3 +34,6 @@ del tools
 del gammalib
 del bad_entries
 del entry
+
+# Add version
+__version__ = '@PACKAGE_VERSION@'
\ No newline at end of file