diff --git a/patches/onap-dublin-patch-role/tasks/main.yml b/patches/onap-dublin-patch-role/tasks/main.yml
index fd0ba3c..fb81f20 100644
--- a/patches/onap-dublin-patch-role/tasks/main.yml
+++ b/patches/onap-dublin-patch-role/tasks/main.yml
@@ -8,6 +8,13 @@
     - common/dgbuilder/templates/deployment.yaml
   register: npm_files_check
 
+- name: Check presence of files for nexus domain resolving
+  stat:
+    path: "{{ app_helm_charts_infra_directory }}/{{ item }}"
+  with_items:
+    - oof/charts/oof-cmso/charts/oof-cmso-service/resources/config/msosimulator.sh
+  register: hosts_files_check
+
 - name: Patch OOM - set npm registry
   lineinfile:
     path: "{{ item.stat.path }}"
@@ -18,3 +25,12 @@
   with_items: "{{ npm_files_check.results }}"
   when: item.stat.exists
 
+- name: Patch OOM - nexus domain resolving
+  lineinfile:
+    path: "{{ item.stat.path }}"
+    regexp: '^(.*)HOSTS_FILE_RECORD'
+    line: '\g<1>{{ cluster_ip }} {{ simulated_hosts.nexus | join(" ") }} >> /etc/hosts;'
+    backrefs: yes
+    state: present
+  with_items: "{{ hosts_files_check.results }}"
+  when: item.stat.exists