diff --git a/6-i386/Dockerfile b/6-i386/Dockerfile
index 3a5114199832590a1f6c02d94ab4d3fecaefdd56..d5433358aaa5d0cd307b3a2b9944dd175b695398 100644
--- a/6-i386/Dockerfile
+++ b/6-i386/Dockerfile
@@ -32,7 +32,8 @@ RUN groupadd -g 1000 jenkins \
  && echo 'Defaults:jenkins !requiretty' | tee -a /etc/sudoers \
  && echo 'jenkins ALL=(ALL:ALL) NOPASSWD: ALL' | tee -a /etc/sudoers
 
-RUN yum install -y centos-release-scl centos-release-scl-rh
+# not available on EL6
+#RUN yum install -y centos-release-scl centos-release-scl-rh
 
 RUN wget -O /etc/yum.repos.d/ICINGA-release.repo \
  https://packages.icinga.com/epel/ICINGA-release.repo