diff --git a/bombast/__init__.py b/bombast/__init__.py
index f74f92c..7f931c1 100644
--- a/bombast/__init__.py
+++ b/bombast/__init__.py
@@ -139,45 +139,3 @@ def configure(path):
         else:
             print('Warning: option "{}" is unused.'.format(option),
                   file=sys.stderr)
-
-def main():
-    parser = argparse.ArgumentParser(description='Obfuscate Python source code.')
-    parser.add_argument('infile', type=argparse.FileType('rb'),
-                        default=sys.stdin,
-                        help='input')
-    parser.add_argument('outfile', nargs='?', type=argparse.FileType('w'),
-                        default='obfuscated.py',
-                        help='output [default: obfuscated.py]')
-    parser.add_argument('--seed', type=int, default=0,
-                        help='random seed [default: 0]')
-    parser.add_argument('--iters', type=int, default=1,
-                        help='number of iterations [default: 1]')
-    parser.add_argument('--config', type=str,
-                        help='configuration file [default: bombast.config]')
-    parser.add_argument('--show-translations', action='store_true',
-                        help='print translations to stdout')
-    args = parser.parse_args()
-    configure(args.config)
-
-    random.seed(args.seed)
-    root = ast.parse(args.infile.read())
-
-    # Choose renamings
-    preprocess = Preprocess()
-    preprocess.visit(root)
-
-    bombast = Bombast(preprocess)
-    for _ in range(args.iters):
-        root = bombast.visit(root)
-
-    # Postprocessing
-    root.body.sort(key=lambda x: not isinstance(x, ast.Import)) # move imports
-    ast.fix_missing_locations(root) # fix AST
-
-    print(astunparse.unparse(root), file=args.outfile)
-    if args.show_translations:
-        for original, obfuscated in preprocess.mapping.items():
-            print(original, '=', obfuscated)
-
-if __name__ == '__main__':
-    main()
diff --git a/bombast/__main__.py b/bombast/__main__.py
new file mode 100644
index 0000000..339c3bf
--- /dev/null
+++ b/bombast/__main__.py
@@ -0,0 +1,43 @@
+from bombast import *
+
+def main():
+    parser = argparse.ArgumentParser(description='Obfuscate Python source code.')
+    parser.add_argument('infile', type=argparse.FileType('rb'),
+                        default=sys.stdin,
+                        help='input')
+    parser.add_argument('outfile', nargs='?', type=argparse.FileType('w'),
+                        default='obfuscated.py',
+                        help='output [default: obfuscated.py]')
+    parser.add_argument('--seed', type=int, default=0,
+                        help='random seed [default: 0]')
+    parser.add_argument('--iters', type=int, default=1,
+                        help='number of iterations [default: 1]')
+    parser.add_argument('--config', type=str,
+                        help='configuration file [default: bombast.config]')
+    parser.add_argument('--show-translations', action='store_true',
+                        help='print translations to stdout')
+    args = parser.parse_args()
+    configure(args.config)
+
+    random.seed(args.seed)
+    root = ast.parse(args.infile.read())
+
+    # Choose renamings
+    preprocess = Preprocess()
+    preprocess.visit(root)
+
+    bombast = Bombast(preprocess)
+    for _ in range(args.iters):
+        root = bombast.visit(root)
+
+    # Postprocessing
+    root.body.sort(key=lambda x: not isinstance(x, ast.Import)) # move imports
+    ast.fix_missing_locations(root) # fix AST
+
+    print(astunparse.unparse(root), file=args.outfile)
+    if args.show_translations:
+        for original, obfuscated in preprocess.mapping.items():
+            print(original, '=', obfuscated)
+
+
+main()
diff --git a/setup.py b/setup.py
index 00e1c66..2ca5a5b 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
     install_requires=['astunparse'],
     entry_points={
         'console_scripts': [
-            'bombast=bombast.__init__:main',
+            'bombast=bombast.__main__:main',
         ],
     }
 )