diff --git a/config/unbound/unbound-dhcp-leases-bridge 
b/config/unbound/unbound-dhcp-leases-bridge
index e9f022aff..d22772066 100644
--- a/config/unbound/unbound-dhcp-leases-bridge
+++ b/config/unbound/unbound-dhcp-leases-bridge
@@ -22,6 +22,7 @@
  import argparse
  import datetime
  import daemon
+import filecmp
  import functools
  import ipaddress
  import logging
@@ -516,26 +517,35 @@ class UnboundConfigWriter(object):

  	def update_dhcp_leases(self, leases):
  		# Write out all leases
-		self.write_dhcp_leases(leases)
+		if self.write_dhcp_leases(leases):

-		log.debug("Reloading Unbound...")
+			log.debug("Reloading Unbound...")

-		# Reload the configuration without dropping the cache
-		self._control("reload_keep_cache")
+			# Reload the configuration without dropping the cache
+			self._control("reload_keep_cache")
+
+		else:
+
+			log.debug("Not reloading Unbound. Leases not changed.")

  	def write_dhcp_leases(self, leases):
  		log.debug("Writing DHCP leases...")

  		with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
-			for l in leases:
+			for l in sorted(leases):
  				for rr in l.rrset:
  					f.write("local-data: \"%s\"\n" % " ".join(rr))

-			# Make file readable for everyone
-			os.fchmod(f.fileno(), 
stat.S_IRUSR|stat.S_IWUSR|stat.S_IRGRP|stat.S_IROTH)
+		filecmp.clear_cache()
+		RequireUnboundReload = not filecmp.cmp(f.name, self.path, shallow=False)
+
+		# Make file readable for everyone
+		os.chmod(f.name, stat.S_IRUSR|stat.S_IWUSR|stat.S_IRGRP|stat.S_IROTH)
+
+		# Move the file to its destination
+		os.rename(f.name, self.path)

-			# Move the file to its destination
-			os.rename(f.name, self.path)
+		return RequireUnboundReload

  	def _control(self, *args):