diff --git a/manila/share/drivers/helpers.py b/manila/share/drivers/helpers.py
index c35772f6ee..e8fb38b4f9 100644
--- a/manila/share/drivers/helpers.py
+++ b/manila/share/drivers/helpers.py
@@ -447,7 +447,7 @@ class CIFSHelperIPAccess(CIFSHelperBase):
             except Exception:
                 msg = _("Could not create CIFS export %s.") % share_name
                 LOG.exception(msg)
-                raise exception.ManilaException(reason=msg)
+                raise exception.ManilaException(msg)
         else:
             # Share exists
             if recreate:
@@ -458,7 +458,7 @@ class CIFSHelperIPAccess(CIFSHelperBase):
                 except Exception:
                     msg = _("Could not create CIFS export %s.") % share_name
                     LOG.exception(msg)
-                    raise exception.ManilaException(reason=msg)
+                    raise exception.ManilaException(msg)
             else:
                 msg = _('Share section %s already defined.') % share_name
                 raise exception.ShareBackendException(msg=msg)
diff --git a/manila/share/drivers/qnap/qnap.py b/manila/share/drivers/qnap/qnap.py
index fa316773fb..989d5b87d5 100644
--- a/manila/share/drivers/qnap/qnap.py
+++ b/manila/share/drivers/qnap/qnap.py
@@ -881,7 +881,7 @@ class QnapShareDriver(driver.ShareDriver):
         if existing_share is None:
             msg = _("The share id %s was not found on backend.") % volID
             LOG.error(msg)
-            raise exception.ShareNotFound(reason=msg)
+            raise exception.ShareNotFound(msg)
 
         snapshot_id = snapshot.get('provider_location')
         snapshot_id_info = snapshot_id.split('@')
@@ -893,7 +893,7 @@ class QnapShareDriver(driver.ShareDriver):
             msg = _("Incorrect provider_location format. It should have the "
                     "following format: share_name@snapshot_name.")
             LOG.error(msg)
-            raise exception.InvalidParameterValue(reason=msg)
+            raise exception.InvalidParameterValue(msg)
 
         if share_name != existing_share.find('vol_label').text:
             msg = (_("The assigned share %(share_name)s was not matched "
@@ -901,7 +901,7 @@ class QnapShareDriver(driver.ShareDriver):
                    {'share_name': share_name,
                     'vol_label': existing_share.find('vol_label').text})
             LOG.error(msg)
-            raise exception.ShareNotFound(reason=msg)
+            raise exception.ShareNotFound(msg)
 
         check_snapshot = self.api_executor.get_snapshot_info(
             volID=volID, snapshot_name=snapshot_name)
diff --git a/manila/share_group/share_group_types.py b/manila/share_group/share_group_types.py
index 3db0de2123..0daa3ad296 100644
--- a/manila/share_group/share_group_types.py
+++ b/manila/share_group/share_group_types.py
@@ -120,7 +120,7 @@ def get_by_name_or_id(context, share_group_type=None):
         share_group_type_ref = get_default(context)
         if not share_group_type_ref:
             msg = _("Default share group type not found.")
-            raise exception.ShareGroupTypeNotFound(reason=msg)
+            raise exception.ShareGroupTypeNotFound(msg)
         return share_group_type_ref
 
     if uuidutils.is_uuid_like(share_group_type):
diff --git a/manila/volume/cinder.py b/manila/volume/cinder.py
index 4424317c5c..a9d2db63e3 100644
--- a/manila/volume/cinder.py
+++ b/manila/volume/cinder.py
@@ -201,24 +201,24 @@ class API(base.Base):
         """Raise exception if volume in use."""
         if volume['status'] != "in-use":
             msg = _("status must be 'in-use'")
-            raise exception.InvalidVolume(reason=msg)
+            raise exception.InvalidVolume(msg)
 
     def check_attach(self, context, volume, instance=None):
         if volume['status'] != "available":
             msg = _("status must be 'available'")
-            raise exception.InvalidVolume(reason=msg)
+            raise exception.InvalidVolume(msg)
         if volume['attach_status'] == "attached":
             msg = _("already attached")
-            raise exception.InvalidVolume(reason=msg)
+            raise exception.InvalidVolume(msg)
         if instance and not CONF[CINDER_GROUP].cross_az_attach:
             if instance['availability_zone'] != volume['availability_zone']:
                 msg = _("Instance and volume not in same availability_zone")
-                raise exception.InvalidVolume(reason=msg)
+                raise exception.InvalidVolume(msg)
 
     def check_detach(self, context, volume):
         if volume['status'] == "available":
             msg = _("already detached")
-            raise exception.InvalidVolume(reason=msg)
+            raise exception.InvalidVolume(msg)
 
     @translate_volume_exception
     def reserve_volume(self, context, volume_id):