diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0c2a87db61f4f89b574b864f9405de982b4bca8a..b2dd1bfb693f81baee5d0f2bf47c82b8d27b5b10 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,7 +30,6 @@ do-nightly-clean-ubuntu18:
   variables:
     OS: 'ubuntu18'  
 
-# per os items
 do-nightly-clean-ubuntu16:
   <<: *do-nightly-clean
   tags:
@@ -38,6 +37,13 @@ do-nightly-clean-ubuntu16:
   variables:
     OS: 'ubuntu16'  
 
+do-nightly-clean-centos75:
+  <<: *do-nightly-clean
+  tags:
+    - centos75
+  variables:
+    OS: 'centos75'  
+
 
 #
 # building 
@@ -67,6 +73,13 @@ do-build-ubuntu16:
   variables:
     OS: 'ubuntu16'  
 
+do-build-centos75:
+  <<: *do-build
+  tags:
+    - centos75
+  variables:
+    OS: 'centos75'  
+
 
 
 #
@@ -94,6 +107,13 @@ xform-ls-ubuntu16:
   variables:
     OS: 'ubuntu16'  
 
+xform-ls-centos75:
+  <<: *xform-ls
+  tags:
+    - centos75
+  variables:
+    OS: 'centos75'  
+
 #
 # $PSZ cat
 #
@@ -118,3 +138,10 @@ xform-cat-ubuntu16:
   variables:
     OS: 'ubuntu16'  
 
+xform-cat-centos75:
+  <<: *xform-cat
+  tags:
+    - centos75
+  variables:
+    OS: 'centos75'  
+