diff --git a/_modules/manilang/common.py b/_modules/manilang/common.py
index 47bcfd8..511bd98 100644
--- a/_modules/manilang/common.py
+++ b/_modules/manilang/common.py
@@ -15,7 +15,11 @@
 
 import logging
 
-import os_client_config
+try:
+    import os_client_config
+except ImportError:
+    os_client_config = None
+from salt import exceptions
 
 
 MANILA_HEADER = 'X-OpenStack-Manila-API-Version'
@@ -46,6 +50,10 @@
 
 
 def _get_raw_client(cloud_name):
+    if not os_client_config:
+        raise exceptions.SaltInvocationError(
+            "Cannot load os-client-config. Please check your environment "
+            "configuration.")
     service_type = 'sharev2'
     adapter = os_client_config.make_rest_client(service_type,
                                                 cloud=cloud_name)