diff --git a/sshuttle/methods/pf.py b/sshuttle/methods/pf.py
index 444e0e0..2c0e575 100644
--- a/sshuttle/methods/pf.py
+++ b/sshuttle/methods/pf.py
@@ -14,7 +14,11 @@ from sshuttle.helpers import debug1, debug2, debug3, Fatal, family_to_string
 from sshuttle.methods import BaseMethod
 
 
-_pf_context = {'started_by_sshuttle': False, 'Xtoken': []}
+_pf_context = {
+    'started_by_sshuttle': 0,
+    'loaded_by_sshuttle': True,
+    'Xtoken': []
+}
 _pf_fd = None
 
 
@@ -60,13 +64,13 @@ class Generic(object):
     def enable(self):
         if b'INFO:\nStatus: Disabled' in self.status:
             pfctl('-e')
-            _pf_context['started_by_sshuttle'] = True
+            _pf_context['started_by_sshuttle'] += 1
 
     def disable(self, anchor):
         pfctl('-a %s -F all' % anchor)
-        if _pf_context['started_by_sshuttle']:
+        if _pf_context['started_by_sshuttle'] == 1:
             pfctl('-d')
-            _pf_context['started_by_sshuttle'] = False
+        _pf_context['started_by_sshuttle'] -= 1
 
     def query_nat(self, family, proto, src_ip, src_port, dst_ip, dst_port):
         [proto, family, src_port, dst_port] = [
@@ -168,6 +172,18 @@ class FreeBsd(Generic):
     def __init__(self):
         super(FreeBsd, self).__init__()
 
+    def enable(self):
+        returncode = ssubprocess.call(['kldload', 'pf'])
+        super(FreeBsd, self).enable()
+        if returncode == 0:
+            _pf_context['loaded_by_sshuttle'] = True
+
+    def disable(self, anchor):
+        super(FreeBsd, self).disable(anchor)
+        if _pf_context['loaded_by_sshuttle'] and \
+                _pf_context['started_by_sshuttle'] == 0:
+            ssubprocess.call(['kldunload', 'pf'])
+
     def add_anchors(self, anchor):
         status = pfctl('-s all')[0]
         if ('\nrdr-anchor "%s"' % anchor).encode('ASCII') not in status: