diff --git a/Configuration/PyReleaseValidation/scripts/runTheMatrix.py b/Configuration/PyReleaseValidation/scripts/runTheMatrix.py
index 6f32f6e814c90..32ebb34d3710f 100755
--- a/Configuration/PyReleaseValidation/scripts/runTheMatrix.py
+++ b/Configuration/PyReleaseValidation/scripts/runTheMatrix.py
@@ -399,6 +399,7 @@ def runSelected(opt):
         if os.path.exists(cmssw_base):
           os.environ["PATH"]=cmssw_base+":"+os.getenv("PATH")
           os.environ["CMS_PATH"]="/cvmfs/cms-ib.cern.ch"
+          os.environ["SITECONFIG_PATH"]="/cvmfs/cms-ib.cern.ch/SITECONF/local"
           os.environ["CMSSW_USE_IBEOS"]="true"
           print(">> WARNING: You are using SITECONF from /cvmfs/cms-ib.cern.ch")
           break