diff --git a/cinder/files/liberty/cinder.conf.controller.Debian b/cinder/files/liberty/cinder.conf.controller.Debian
index 4a08a94..392f34a 100644
--- a/cinder/files/liberty/cinder.conf.controller.Debian
+++ b/cinder/files/liberty/cinder.conf.controller.Debian
@@ -144,7 +144,7 @@
 max_pool_size=30
 max_retries=-1
 max_overflow=40
-connection = {{ controller.database.engine }}://{{ controller.database.user }}:{{ controller.database.password }}@{{ controller.database.host }}/{{ controller.database.name }}
+connection = {{ controller.database.engine }}+pymysql://{{ controller.database.user }}:{{ controller.database.password }}@{{ controller.database.host }}/{{ controller.database.name }}
 
 {# new way #}
 
diff --git a/cinder/files/liberty/cinder.conf.volume.Debian b/cinder/files/liberty/cinder.conf.volume.Debian
index fbaacee..0943e48 100644
--- a/cinder/files/liberty/cinder.conf.volume.Debian
+++ b/cinder/files/liberty/cinder.conf.volume.Debian
@@ -140,7 +140,7 @@
 max_pool_size=30
 max_retries=-1
 max_overflow=40
-connection = {{ volume.database.engine }}://{{ volume.database.user }}:{{ volume.database.password }}@{{ volume.database.host }}/{{ volume.database.name }}
+connection = {{ volume.database.engine }}+pymysql://{{ volume.database.user }}:{{ volume.database.password }}@{{ volume.database.host }}/{{ volume.database.name }}
 
 {# new way #}