diff --git a/oslo_templates/files/queens/oslo/_middleware.conf b/oslo_templates/files/queens/oslo/_middleware.conf
index 5a9f0e4..03ce083 100644
--- a/oslo_templates/files/queens/oslo/_middleware.conf
+++ b/oslo_templates/files/queens/oslo/_middleware.conf
@@ -20,6 +20,4 @@
 
 # Whether the application is behind a proxy or not. This determines if
 # the middleware should parse the headers or not. (boolean value)
-{%- if _data.enable_proxy_headers_parsing is defined %}
-enable_proxy_headers_parsing = {{ _data.enable_proxy_headers_parsing }}
-{%- endif %}
+enable_proxy_headers_parsing = {{ _data.get('enable_proxy_headers_parsing', True) }}