diff --git a/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-neoverse_v1/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-neoverse_v1/spack.yaml
index da3bf504240..75be544c0ea 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-neoverse_v1/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-neoverse_v1/spack.yaml
@@ -33,6 +33,9 @@ spack:
           - for i in $(aws s3 ls --recursive ${SPACK_REMOTE_MIRROR_OVERRIDE}/build_cache/ | grep armpl | awk '{print $4}' | sed -e 's?^.*build_cache/??g'); do aws s3 rm ${SPACK_REMOTE_MIRROR_OVERRIDE}/build_cache/$i; done
   cdash:
     build-group: AWS Packages
+  config:
+    shared_linking:
+      missing_library_policy: ignore  # due to use of externals
   compilers:
   - compiler:
       environment: {}
diff --git a/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-x86_64_v4/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-x86_64_v4/spack.yaml
index c37b72ae31b..fd2d4f2138c 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-x86_64_v4/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/aws-pcluster-x86_64_v4/spack.yaml
@@ -36,6 +36,9 @@ spack:
           - for i in $(aws s3 ls --recursive ${SPACK_REMOTE_MIRROR_OVERRIDE}/build_cache/ | grep armpl | awk '{print $4}' | sed -e 's?^.*build_cache/??g'); do aws s3 rm ${SPACK_REMOTE_MIRROR_OVERRIDE}/build_cache/$i; done
   cdash:
     build-group: AWS Packages
+  config:
+    shared_linking:
+      missing_library_policy: ignore  # due to use of externals
   compilers:
   - compiler:
       environment: {}