diff --git a/autocmake/generate.py b/autocmake/generate.py
index 451ed1c..dcd8ef9 100644
--- a/autocmake/generate.py
+++ b/autocmake/generate.py
@@ -56,7 +56,7 @@ def gen_setup(config, default_build_type, relative_path, setup_script_name):
     s.append('\n{0}'.format(autogenerated_notice()))
     s.append('\nimport os')
     s.append('import sys')
-    s.append('assert sys.version_info >= (2, 6), \'Python >= 2.6 is required\' ')
+    s.append('assert sys.version_info >= (2, 6), \'Python >= 2.6 is required\'')
 
     s.append("\nsys.path.insert(0, '{0}')".format(relative_path))