diff --git a/lxc_container_info.py b/lxc_container_info.py
index 5d8f6c6..03098c7 100644
--- a/lxc_container_info.py
+++ b/lxc_container_info.py
@@ -150,18 +150,30 @@ def run_module():
 
 		res_stat = {}
 		if ct.running:
-			res_stat['mem'] = {
-				'usage': int(ct.get_cgroup_item("memory.usage_in_bytes")),
-				'max_usage': int(ct.get_cgroup_item("memory.max_usage_in_bytes")),
-				'usage_mb': int(ct.get_cgroup_item("memory.usage_in_bytes")) // 1048576,
-				'max_usage_mb': int(ct.get_cgroup_item("memory.max_usage_in_bytes")) // 1048576,
-				}
-			res_stat['kmem'] = {
-				'usage': int(ct.get_cgroup_item("memory.kmem.usage_in_bytes")),
-				'max_usage': int(ct.get_cgroup_item("memory.kmem.max_usage_in_bytes")),
-				'usage_mb': int(ct.get_cgroup_item("memory.kmem.usage_in_bytes")) // 1048576,
-				'max_usage_mb': int(ct.get_cgroup_item("memory.kmem.max_usage_in_bytes")) // 1048576,
-				}
+			res_stat['mem'] = {}
+			for (k, v) in [ ('usage', 'memory.usage_in_bytes'), ('max_usage', 'memory.max_usage_in_bytes') ]:
+				try:
+					res_stat['mem'][k] = int(ct.get_cgroup_item(v))
+				except KeyError:
+					pass
+			for (k, v) in [ ('usage_mb', 'memory.usage_in_bytes'), ('max_usage_mb', 'memory.max_usage_in_bytes') ]:
+				try:
+					res_stat['mem'][k] = int(ct.get_cgroup_item(v)) // 1048576
+				except KeyError:
+					pass
+
+			res_stat['kmem'] = {}
+			for (k, v) in [ ('usage', 'memory.kmem.usage_in_bytes'), ('max_usage', 'memory.kmem.max_usage_in_bytes') ]:
+				try:
+					res_stat['kmem'][k] = int(ct.get_cgroup_item(v))
+				except KeyError:
+					pass
+			for (k, v) in [ ('usage_mb', 'memory.kmem.usage_in_bytes'), ('max_usage_mb', 'memory.kmem.max_usage_in_bytes') ]:
+				try:
+					res_stat['kmem'][k] = int(ct.get_cgroup_item(v)) // 1048576
+				except KeyError:
+					pass
+
 		res_ct['stats'] = res_stat
 
 		result['containers'][ctname] = res_ct