diff --git a/IM/connectors/OpenNebula.py b/IM/connectors/OpenNebula.py
index ae3298087..83ce0caa6 100644
--- a/IM/connectors/OpenNebula.py
+++ b/IM/connectors/OpenNebula.py
@@ -570,7 +570,11 @@ def finalize(self, vm, last, auth_data):
             self.delete_snapshots(vm, auth_data)
 
         if vm.id:
-            success, err = server.one.vm.action(session_id, 'delete', int(vm.id))[0:2]
+            one_ver = self.getONEVersion(auth_data)
+            op = 'terminate'
+            if one_ver <= LooseVersion("4.14.0"):
+                op = 'delete'
+            success, err = server.one.vm.action(session_id, op, int(vm.id))[0:2]
         else:
             self.log_warn("No VM ID. Ignoring")
             err = ""
@@ -1176,7 +1180,7 @@ def create_snapshot(self, vm, disk_num, image_name, auto_delete, auth_data):
 
         image_type = ""  # Use the default one
         one_ver = self.getONEVersion(auth_data)
-        if one_ver.startswith("5."):
+        if one_ver >= LooseVersion("5.0"):
             success, res_info = server.one.vm.disksaveas(session_id, int(vm.id), disk_num,
                                                          image_name, image_type, -1)[0:2]
         else:
diff --git a/README.md b/README.md
index 3b0409490..5fee8d0d3 100644
--- a/README.md
+++ b/README.md
@@ -106,8 +106,8 @@ However, if you install IM from sources you should install:
 * The RADL parser (<https://github.com/grycap/radl>), available in pip
   as the ``RADL`` package.
 * The paramiko ssh2 protocol library for python version 1.14 or later
-(<http://www.lag.net/paramiko/>), typically available as the
-``python-paramiko`` package.
+  (<http://www.lag.net/paramiko/>), typically available as the
+  ``python-paramiko`` package.
 * The YAML library for Python, typically available as the ``python-yaml`` or
   ``PyYAML`` package.
 * The suds library for Python, typically available as the ``python-suds``