diff --git a/ansible/Dockerfiles/example/autoregister.yml b/ansible/Dockerfiles/example/autoregister.yml
index a8077076c..29cb63241 100644
--- a/ansible/Dockerfiles/example/autoregister.yml
+++ b/ansible/Dockerfiles/example/autoregister.yml
@@ -58,6 +58,13 @@
       replace: 'ETSCTF_{{item.code}}'
       backup: no
 
+  - name: BUILD_COMMANDS.exec
+    become_user: "{{item.become|default('root')}}"
+    become: true
+    when: BUILD_COMMANDS is defined and BUILD_COMMANDS.exec is defined and EXEC_BEFORE_REPLACE is defined
+    with_items: "{{BUILD_COMMANDS.exec}}"
+    raw: "{{item.cmd}}"
+
 
   - name: BUILD_COMMANDS.replace
     when: BUILD_COMMANDS is defined and BUILD_COMMANDS.replace is defined
@@ -71,7 +78,7 @@
   - name: BUILD_COMMANDS.exec
     become_user: "{{item.become|default('root')}}"
     become: true
-    when: BUILD_COMMANDS is defined and BUILD_COMMANDS.exec is defined
+    when: BUILD_COMMANDS is defined and BUILD_COMMANDS.exec is defined and EXEC_BEFORE_REPLACE is not defined
     with_items: "{{BUILD_COMMANDS.exec}}"
     raw: "{{item.cmd}}"
 
diff --git a/ansible/Dockerfiles/example/variables.yml b/ansible/Dockerfiles/example/variables.yml
index 8d1e55df9..56f43f3d0 100644
--- a/ansible/Dockerfiles/example/variables.yml
+++ b/ansible/Dockerfiles/example/variables.yml
@@ -224,6 +224,8 @@ ETSCTF_TREASURES:
 #INI_FILES:
 #  - { file: "/path/to/file.ini", section: "SECTION", option: OPTION, value: "VALUE"}
 
+# Uncoment the following to run exec before replace
+# EXEC_BEFORE_REPLACE: true
 # These commands are executed at build time by ansible
 BUILD_COMMANDS:
 #  exec: