diff --git a/python-ptyprocess.spec b/python-ptyprocess.spec
index a19ab99..988c909 100644
--- a/python-ptyprocess.spec
+++ b/python-ptyprocess.spec
@@ -35,6 +35,7 @@ process and its pty.
 
 %prep
 %setup -qn ptyprocess-%{version}
+rm -r tests/__pycache__ tests/*.pyc
 %if 0%{?with_python3}
 rm -rf %{py3dir}
 cp -ar . %{py3dir}