diff --git a/neat/globals/manager.py b/neat/globals/manager.py
index 2b7553f..2c65029 100644
--- a/neat/globals/manager.py
+++ b/neat/globals/manager.py
@@ -407,7 +407,10 @@ def host_used_ram(nova, host):
     :return: The used RAM of the host.
      :rtype: int
     """
-    return nova.hosts.get(host)[1].memory_mb
+    data = nova.hosts.get(host)
+    if len(data) > 2 and data[2].memory_mb != 0:
+        return data[2].memory_mb
+    return data[1].memory_mb
 
 
 @contract
diff --git a/tests/globals/test_manager.py b/tests/globals/test_manager.py
index f792215..7614f65 100644
--- a/tests/globals/test_manager.py
+++ b/tests/globals/test_manager.py
@@ -261,6 +261,20 @@ class GlobalManager(TestCase):
                 and_return([host1, host2]).once()
             assert manager.host_used_ram(nova, hostname) == 3000
 
+        with MockTransaction:
+            hostname = 'hosthost'
+            nova = mock('nova')
+            nova.hosts = mock('hosts')
+            host1 = mock('host1')
+            host1.memory_mb = 4000
+            host2 = mock('host2')
+            host2.memory_mb = 3000
+            host3 = mock('host3')
+            host3.memory_mb = 3500
+            expect(nova.hosts).get(hostname). \
+                and_return([host1, host2, host3]).once()
+            assert manager.host_used_ram(nova, hostname) == 3500
+
     def test_flavors_ram(self):
         with MockTransaction:
             nova = mock('nova')