diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 00307567686bf30a89cb563bf307791ce04d6b66..80dd96073f14df1f15f8424f2e370bc7460722fc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -42,13 +42,13 @@ dependencies:slc6-standalone:
   <<: *dependencies_template
   image: cern/slc6-base:latest
   variables:
-    CMAKE_EXTRA_FLAGS: -DGEOMODEL_USE_BUILTIN_EIGEN=TRUE
+    CMAKE_EXTRA_FLAGS: -DGEOMODEL_USE_BUILTIN_EIGEN3=TRUE
 
 dependencies:centos7-standalone:
   <<: *dependencies_template
   image: cern/cc7-base:latest
   variables:
-    CMAKE_EXTRA_FLAGS: -DGEOMODEL_USE_BUILTIN_EIGEN=TRUE
+    CMAKE_EXTRA_FLAGS: -DGEOMODEL_USE_BUILTIN_EIGEN3=TRUE
 
 # Build this project.
 .build_template: &build_template