diff --git a/nghttp2.spec b/nghttp2.spec
index 10cbe66..f662ed2 100644
--- a/nghttp2.spec
+++ b/nghttp2.spec
@@ -136,8 +136,12 @@ HTTP/2 client, server and proxy.
 sed -i -e 's:#!%{_bindir}/env python:#!%{_bindir}/python3:g' script/fetch-ocsp-response
 
 %build
-autoreconf -fiv
+%if %{with python}
 export PYTHON=%{_bindir}/python3
+%else
+sed -i -e '/AM_PATH_PYTHON([2.7],, [:]) /d' configure.ac
+%endif
+autoreconf -fiv
 %configure \
   --disable-static        \
   --disable-silent-rules  \