diff --git a/cinder/files/juno/cinder.conf.controller.Debian b/cinder/files/juno/cinder.conf.controller.Debian
index 91d9013..d368da0 100644
--- a/cinder/files/juno/cinder.conf.controller.Debian
+++ b/cinder/files/juno/cinder.conf.controller.Debian
@@ -108,7 +108,7 @@
 
 {%- for backend_name, backend in controller.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}
diff --git a/cinder/files/juno/cinder.conf.volume.Debian b/cinder/files/juno/cinder.conf.volume.Debian
index 2a29c34..9356f6f 100644
--- a/cinder/files/juno/cinder.conf.volume.Debian
+++ b/cinder/files/juno/cinder.conf.volume.Debian
@@ -115,7 +115,7 @@
 
 {%- for backend_name, backend in volume.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}
diff --git a/cinder/files/kilo/cinder.conf.controller.Debian b/cinder/files/kilo/cinder.conf.controller.Debian
index 0cb3700..4ef211c 100644
--- a/cinder/files/kilo/cinder.conf.controller.Debian
+++ b/cinder/files/kilo/cinder.conf.controller.Debian
@@ -112,7 +112,7 @@
 
 {%- for backend_name, backend in controller.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}
diff --git a/cinder/files/kilo/cinder.conf.volume.Debian b/cinder/files/kilo/cinder.conf.volume.Debian
index 3944785..71d9cb1 100644
--- a/cinder/files/kilo/cinder.conf.volume.Debian
+++ b/cinder/files/kilo/cinder.conf.volume.Debian
@@ -123,7 +123,7 @@
 
 {%- for backend_name, backend in volume.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}
diff --git a/cinder/files/liberty/cinder.conf.controller.Debian b/cinder/files/liberty/cinder.conf.controller.Debian
index 7cf588d..873dcf8 100644
--- a/cinder/files/liberty/cinder.conf.controller.Debian
+++ b/cinder/files/liberty/cinder.conf.controller.Debian
@@ -114,7 +114,7 @@
 
 {%- for backend_name, backend in controller.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}
diff --git a/cinder/files/liberty/cinder.conf.volume.Debian b/cinder/files/liberty/cinder.conf.volume.Debian
index 0b80fbd..474c4d1 100644
--- a/cinder/files/liberty/cinder.conf.volume.Debian
+++ b/cinder/files/liberty/cinder.conf.volume.Debian
@@ -123,7 +123,7 @@
 
 {%- for backend_name, backend in volume.get('backend', {}).iteritems() %}
 
-{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + "conf" %}
+{%- set backend_fragment = "cinder/files/backend/_" + backend.engine + ".conf" %}
 {%- include backend_fragment %}
 
 {%- endfor %}