diff --git a/src/setup.py b/src/setup.py
index 194b8dd..9a9786d 100644
--- a/src/setup.py
+++ b/src/setup.py
@@ -16,6 +16,7 @@
 
 from distutils.core import setup;
 import os;
+import re;
 
 realpathfile = os.path.realpath(os.path.dirname(__file__));
 realpathcwd = os.path.realpath(os.getcwd());
@@ -37,9 +38,52 @@
 long_description = f.read();
 f.close();
 
+def findPackages(srcdir='.'):
+    """Finds all regular package under the srcdir directory.
+
+    A regular package must have a valid name and a parent package
+    with an exception when its parent directory is srcdir. Moreover
+    the srcdir cannot be a package.
+
+    @param srcdir: str Find out under this directory
+
+    @return: list A list of fully qualified package name
+    """
+    assert isinstance(srcdir, str);
+
+    packages = list();
+
+    for dirpath, dirnames, filenames in os.walk(srcdir, followlinks=False) :
+        # srcdir cannot be a package
+        if srcdir == dirpath :
+            continue;
+
+        # check whether dirpath is a directory of regular package
+        isRegularPackage = False;
+        parentdir = dirpath;
+        while not srcdir == parentdir :
+            if (
+                not re.match(r'^\w+$', os.path.basename(parentdir))
+                or not os.path.isfile(os.path.join(parentdir, '__init__.py'))
+            ) :
+                break;
+
+            parentdir = os.path.dirname(parentdir);
+            if srcdir == parentdir :
+                isRegularPackage = True;
+
+        if not isRegularPackage :
+            continue;
+
+        # dirpath is a directory of regular package, proceed
+        packageName = os.path.relpath(dirpath, srcdir).replace(os.path.sep, '.');
+        packages.append(packageName);
+
+    return packages;
+
 setup(
     name=pkgname,
-    packages=[pkgname, pkgname + ".test"],
+    packages=findPackages(),
     package_data={pkgname: ['LICENSE']},
     version=version,
     description="A Cygwin command line package management tool.",