diff --git a/scripts/backup b/scripts/backup
index cee0a2b..e7b46fe 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -32,6 +32,16 @@ final_path=$(ynh_app_setting_get $app final_path)
 domain=$(ynh_app_setting_get $app domain)
 db_name=$(ynh_app_setting_get $app db_name)
 
+#=================================================
+# APPLY BACKUP CORE ONLY POLICY
+#=================================================
+# Apply policy only if we are not in upgrade mode
+BACKUP_CORE_ONLY=${BACKUP_CORE_ONLY:-auto}
+if [ "$BACKUP_CORE_ONLY" == "auto" ] ; then
+    BACKUP_CORE_ONLY=$(ynh_app_setting_get $app backup_core_only)
+    BACKUP_CORE_ONLY=${BACKUP_CORE_ONLY:-0}
+fi
+
 #=================================================
 # STANDARD BACKUP STEPS
 #=================================================