diff --git a/manila/data/manager.py b/manila/data/manager.py
index 20312fff15..e5de6e85aa 100644
--- a/manila/data/manager.py
+++ b/manila/data/manager.py
@@ -20,6 +20,7 @@ import os
 import shutil
 
 from oslo_config import cfg
+from oslo_config import types
 from oslo_log import log
 from oslo_service import periodic_task
 from oslo_utils import excutils
@@ -67,8 +68,9 @@ backup_opts = [
         default=['lost+found'],
         help="List of files and folders to be ignored when backing up "
              "shares. Items should be names (not including any path)."),
-    cfg.DictOpt(
+    cfg.Opt(
         'backup_protocol_access_mapping',
+        type=types.Dict(types.List(types.String(), bounds=True)),
         default={'ip': ['nfs']},
         help="Protocol access mapping for backup. Should be a "
              "dictionary comprised of "
diff --git a/manila/share/driver.py b/manila/share/driver.py
index 2ca29df652..339a15a21a 100644
--- a/manila/share/driver.py
+++ b/manila/share/driver.py
@@ -21,6 +21,7 @@ Drivers for shares.
 import time
 
 from oslo_config import cfg
+from oslo_config import types
 from oslo_log import log
 
 from manila.common import constants
@@ -109,8 +110,9 @@ share_opts = [
              "specify the executable with all necessary parameters for the "
              "protocol supported. 'path' template element is required. It is "
              "advisable to separate different commands per backend."),
-    cfg.DictOpt(
+    cfg.Opt(
         'protocol_access_mapping',
+        type=types.Dict(types.List(types.String(), bounds=True)),
         default={
             'ip': ['nfs'],
             'user': ['cifs'],
diff --git a/releasenotes/notes/bug-2038607-fix-protocol-access-mapping-opts-e7d61db3e2a84be7.yaml b/releasenotes/notes/bug-2038607-fix-protocol-access-mapping-opts-e7d61db3e2a84be7.yaml
new file mode 100644
index 0000000000..37bca398c9
--- /dev/null
+++ b/releasenotes/notes/bug-2038607-fix-protocol-access-mapping-opts-e7d61db3e2a84be7.yaml
@@ -0,0 +1,8 @@
+---
+fixes:
+  - |
+    `bug 2038607 <https://bugs.launchpad.net/manila/+bug/2038607>`_: Fixed
+    parse of the protcol_access_mapping option and
+    the backup_protocol_access_mapping option. This change requires that
+    the values used for these options should be formatted like
+    `key0=[value00, value01],key1=[value10]`.