diff --git a/manilaclient/api_versions.py b/manilaclient/api_versions.py
index f4b4bbdcb..9c944373f 100644
--- a/manilaclient/api_versions.py
+++ b/manilaclient/api_versions.py
@@ -18,6 +18,8 @@ import logging
 import re
 import warnings
 
+from oslo_utils import strutils
+
 import manilaclient
 from manilaclient.common._i18n import _
 from manilaclient.common import cliutils
@@ -231,6 +233,8 @@ def check_version_deprecated(api_version):
 def get_api_version(version_string):
     """Returns checked APIVersion object."""
     version_string = str(version_string)
+    if strutils.is_int_like(version_string):
+        version_string = f"{version_string}.0"
 
     api_version = APIVersion(version_string)
     check_version_supported(api_version)
diff --git a/manilaclient/osc/plugin.py b/manilaclient/osc/plugin.py
index 65acb7618..63495ded5 100644
--- a/manilaclient/osc/plugin.py
+++ b/manilaclient/osc/plugin.py
@@ -121,7 +121,7 @@ def build_option_parser(parser):
         ),
         help='Shared File System API version, default='
         + default_api_version
-        + 'version supported by both the client and the server). '
+        + ' (version supported by both the client and the server) '
         '(Env: OS_SHARE_API_VERSION)',
     )
     parser.add_argument(
diff --git a/manilaclient/tests/unit/test_api_versions.py b/manilaclient/tests/unit/test_api_versions.py
index f71cfaa2b..2a1ce4bcb 100644
--- a/manilaclient/tests/unit/test_api_versions.py
+++ b/manilaclient/tests/unit/test_api_versions.py
@@ -144,11 +144,6 @@ class GetAPIVersionTestCase(utils.TestCase):
             "something_wrong",
         )
 
-    def test_wrong_major_version(self):
-        self.assertRaises(
-            exceptions.UnsupportedVersion, api_versions.get_api_version, "1"
-        )
-
     @mock.patch("manilaclient.api_versions.APIVersion")
     def test_major_and_minor_parts_is_presented(self, mock_apiversion):
         version = "2.7"