diff --git a/lhcbnightlyconf/Gauss.py b/lhcbnightlyconf/Gauss.py
index d723012775ea3957832fe961d512b998dc34ae97..f5036d4917f04d15e84a24f1a1ac7307e23b47af 100644
--- a/lhcbnightlyconf/Gauss.py
+++ b/lhcbnightlyconf/Gauss.py
@@ -215,6 +215,9 @@ gaussDev.projects.append(Project('LCG', '96b', disabled=True))
 gaussDev.projects.append(Project('Gaudi', 'master'))
 gaussDev.projects.append(Project('Detector', 'v0-patches'))
 gaussDev.projects.append(Project('LHCb', 'HEAD'))
+# Temporary: force CRMC from a special build
+gaussDev.cache_entries[
+    'CRMC_INCLUDE_DIR'] = '/cvmfs/sft-nightlies.cern.ch/lcg/nightlies/dev3/Thu/MCGenerators/crmc/1.6.0/x86_64-centos7-gcc9-opt/src'
 # Temp hack to trigger slot rebuild
 gaussDev.metadata = {'rebuildAlways': str(datetime.date.today())}
 slots.append(gaussDev)