diff --git a/rpm/libv3270.spec b/rpm/libv3270.spec
index 831822a..244bb42 100644
--- a/rpm/libv3270.spec
+++ b/rpm/libv3270.spec
@@ -76,6 +76,9 @@ BuildRequires:	gtk3-devel
 # https://en.opensuse.org/openSUSE:Build_Service_cross_distribution_howto
 %if %{undefined fedora} && %{undefined rhel_version} && %{undefined centos_version}
 BuildRequires:	libgladeui-2-6
+
+# CENTOS Genmarshal doesn't depends on python!
+BuildRequires:	python
 %endif
 
 %description
--
libgit2 0.21.2