diff --git a/base/centos-full-root6-py2:7 b/base/centos-full-root6-py2:7
index 05abdc05fbf76e32fc2a211798e203f0cf1bd2eb..62e44a319af40504c8b261d0bf78242e12413b59 100644
--- a/base/centos-full-root6-py2:7
+++ b/base/centos-full-root6-py2:7
@@ -11,6 +11,8 @@ FROM centos:7.4.1708
 
  RUN curl -L http://proj-clhep.web.cern.ch/proj-clhep/DISTRIBUTION/tarFiles/clhep-2.2.0.8-x86_64-cc7-gcc48-opt.tgz > clhep.tgz && tar -C /usr/local/ --strip-components=1 -xvzf clhep.tgz
 
+ RUN yum install -y python-devel && yum clean -y all
+
  RUN wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
  RUN rpm -ivh epel-release-latest-7.noarch.rpm
  RUN yum install -y cmake3