diff --git a/geant/gap_ansible/roles/base_config/tasks/merge_variables.yaml b/geant/gap_ansible/roles/base_config/tasks/merge_variables.yaml
index 32d9a3f21857063022aa6d0b4e10956f803d2383..47b9b91b4dcdf50f8f6091100049b6b3abe44660 100644
--- a/geant/gap_ansible/roles/base_config/tasks/merge_variables.yaml
+++ b/geant/gap_ansible/roles/base_config/tasks/merge_variables.yaml
@@ -39,3 +39,7 @@
       ansible.builtin.set_fact:
         cpm_filters: "{{ [cpm_filters, pe_cpm] | community.general.lists_mergeby('family',
                                                                                   list_merge='append') }}"
+    - name: Merge P and PE prefix-lists
+      ansible.builtin.set_fact:
+        nokia_prefix_lists: "{{ [nokia_prefix_lists, nokia_pe_prefix_lists] | community.general.lists_mergeby('name',
+                                                                                              list_merge='append') }}"