diff --git a/lib/ansible/modules/net_tools/nmcli.py b/lib/ansible/modules/net_tools/nmcli.py
index 5454e08935c..a4e0d6e1f5c 100644
--- a/lib/ansible/modules/net_tools/nmcli.py
+++ b/lib/ansible/modules/net_tools/nmcli.py
@@ -741,7 +741,7 @@ class Nmcli(object):
         except dbus.exceptions.DBusException as e:
             self.module.fail_json(msg="Unable to read Network Manager settings from DBus system bus: %s" % to_native(e),
                                   details="Please check if NetworkManager is installed and"
-                                          " service network-manager is started.")
+                                          "service network-manager is started.")
         connection_paths = settings.ListConnections()
         connection_list = []
         # List each connection's name, UUID, and type