diff --git a/setup.py b/setup.py
index 16a03b5..1b3b5d9 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ try:  # for pip >= 10
 except ImportError:  # for pip <= 9.0.3
     from pip.req import parse_requirements as parse
 
-requirements = lambda f: [str(i.req) for i in parse(f, session=False)]
+requirements = lambda f: [str(i.requirement) for i in parse(f, session=False)]
 
 setup(
     name='PyNFe',