diff --git a/setup.py b/setup.py
index 373fc90c..9bc034d3 100755
--- a/setup.py
+++ b/setup.py
@@ -234,7 +234,7 @@ def main(argv):
             ]),
             install_requires=['pyaes', 'rsa'],
             extras_require={
-                'cryptg': ['cryptg']
+                'tgcrypto': ['tgcrypto']
             }
         )