diff --git a/bootstrapvz/providers/ec2/tasks/network.py b/bootstrapvz/providers/ec2/tasks/network.py
index 65aff26..100f9c8 100644
--- a/bootstrapvz/providers/ec2/tasks/network.py
+++ b/bootstrapvz/providers/ec2/tasks/network.py
@@ -12,7 +12,7 @@ class EnableDHCPCDDNS(Task):
 	def run(cls, info):
 		# The dhcp client that ships with debian sets the DNS servers per default.
 		# For dhcpcd in Wheezy and earlier we need to configure it to do that.
-		if info.release_codename in {'jessie', 'sid'}:
+		if info.release_codename not in {'jessie', 'sid'}:
 			from bootstrapvz.common.tools import sed_i
 			dhcpcd = os.path.join(info.root, 'etc/default/dhcpcd')
 			sed_i(dhcpcd, '^#*SET_DNS=.*', 'SET_DNS=\'yes\'')