diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 686868b6762f009a225959e242f65188075d3466..45e06075764f98cf8a504c53ca8e28d7cb505977 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,3 +7,13 @@ build:
         - automake
         - ./configure
         - make clean && make
+
+build-sl5:
+    image: docker.km3net.de/base/sl-full:5
+    script:
+        - yum -y install autoconf automake
+        - autoreconf
+        - autoconf
+        - automake
+        - ./configure
+        - make clean && make
\ No newline at end of file