diff --git a/roles/nagios_server/files/nagios/plugins/check_haproxy_conns.py b/roles/nagios_server/files/nagios/plugins/check_haproxy_conns.py
index 7762ffabb9..ae9c395957 100755
--- a/roles/nagios_server/files/nagios/plugins/check_haproxy_conns.py
+++ b/roles/nagios_server/files/nagios/plugins/check_haproxy_conns.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 """ Nagios check for haproxy over-subscription.
 
 fedmsg-gateway is the primary concern as it can eat up a ton of simultaneous
@@ -22,28 +22,28 @@ def _numeric(value):
             return value
 
 
-def query(sockname="/var/run/haproxy-stat"):
+def query(sockname):
     """ Read stats from the haproxy socket and return a dict """
-    s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-    s.connect("/var/run/haproxy-stat")
-    s.send('show info\n')
+    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+    sock.connect(sockname)
+    send_string = 'show info\n'
+    sock.send(send_string.encode())
     try:
-        response = s.recv(2048).strip()
+        response = sock.recv(2048).strip().decode()
         lines = response.split('\n')
-        data = dict([map(str.strip, line.split(':')) for line in lines])
-        data = dict([(k, _numeric(v)) for k, v in data.items()])
+        data = dict(line.split(':') for line in lines)
+        data = {k:_numeric(v) for (k, v) in data.items()}
         return data
-    except Exception, e:
-        print str(e)
+    except Exception as err:
+        print(str(err))
     finally:
-        s.close()
+        sock.close()
 
     return None
 
 
 def nagios_check(data):
     """ Print warnings and return nagios exit codes. """
-
     current = data['CurrConns']
     maxconn = data['Maxconn']
     percent = 100 * float(current) / float(maxconn)
@@ -52,25 +52,25 @@ def nagios_check(data):
     )
 
     if percent < 50:
-        print "HAPROXY SUBS OK: " + details
+        print("HAPROXY SUBS OK: " + details)
         return 0
 
     if percent < 75:
-        print "HAPROXY SUBS WARN: " + details
+        print("HAPROXY SUBS WARN: " + details)
         return 1
 
     if percent <= 100:
-        print "HAPROXY SUBS CRIT: " + details
+        print("HAPROXY SUBS CRIT: " + details)
         return 2
 
-    print "HAPROXY SUBS UNKNOWN: " + details
+    print("HAPROXY SUBS UNKNOWN: " + details)
     return 3
 
 
 if __name__ == '__main__':
     try:
         data = query(sockname="/var/run/haproxy-stat")
-    except Exception as e:
-        print "HAPROXY SUBS UNKNOWN: " + str(e)
+    except Exception as err:
+        print("HAPROXY SUBS UNKNOWN: " + str(err))
         sys.exit(3)
     sys.exit(nagios_check(data))