diff --git a/urlwatch.spec b/urlwatch.spec
index 967758c..e99d4e4 100644
--- a/urlwatch.spec
+++ b/urlwatch.spec
@@ -43,7 +43,8 @@ Basic features
 %prep
 %setup -q
 %patch0 -p0 -b .xmmp
-
+# Convert sources to Python 3 as mentioned in the README
+2to3 -w "urlwatch lib/urlwatch/*.py examples/hooks.py.example setup.py"
 
 %build
 %{__python} setup.py build
@@ -52,7 +53,7 @@ Basic features
 %install
 rm -rf %{buildroot}
 %{__python} setup.py install -O1 --skip-build --root=%{buildroot}
-#Fix exec permission for rpmlint
+# Fix exec permission for rpmlint
 chmod 0755 %{buildroot}%{python_sitelib}/%{name}/*txt.py
 chmod a+x %{buildroot}%{python_sitelib}/%{name}/handler.py