diff --git a/manila_tempest_tests/tests/api/admin/test_share_manage_negative.py b/manila_tempest_tests/tests/api/admin/test_share_manage_negative.py
index d5cc09f..06d429b 100644
--- a/manila_tempest_tests/tests/api/admin/test_share_manage_negative.py
+++ b/manila_tempest_tests/tests/api/admin/test_share_manage_negative.py
@@ -258,7 +258,9 @@
 
         # forge bad param to have a share in manage_error state
         invalid_params = valid_params.copy()
-        invalid_params.update({'export_path': 'invalid'})
+        invalid_params.update(
+            {'export_path': 'invalid-%s-share' % self.protocol}
+        )
         invalid_share = self.shares_v2_client.manage_share(**invalid_params)
 
         waiters.wait_for_share_status(
diff --git a/manila_tempest_tests/tests/api/base.py b/manila_tempest_tests/tests/api/base.py
index 0ee3611..2310591 100755
--- a/manila_tempest_tests/tests/api/base.py
+++ b/manila_tempest_tests/tests/api/base.py
@@ -1110,11 +1110,6 @@
         return rule
 
 
-class BaseSharesAltTest(BaseSharesTest):
-    """Base test case class for all Shares Alt API tests."""
-    credentials = ('alt', )
-
-
 class BaseSharesAdminTest(BaseSharesTest):
     """Base test case class for all Shares Admin API tests."""
     credentials = ('admin', )