diff --git a/lib/puppet/type/rabbitmq_exchange.rb b/lib/puppet/type/rabbitmq_exchange.rb
index b2e88a8de..7dd0a1ff9 100644
--- a/lib/puppet/type/rabbitmq_exchange.rb
+++ b/lib/puppet/type/rabbitmq_exchange.rb
@@ -24,16 +24,19 @@
   newparam(:durable) do
     desc 'Exchange durability to be set *on creation*'
     newvalues(/^\S+$/)
+    defaultto 'false'
   end
 
   newparam(:auto_delete) do
     desc 'Exchange auto delete option to be set *on creation*'
     newvalues(/^\S+$/)
+    defaultto 'false'
   end
 
   newparam(:internal) do
     desc 'Exchange internal option to be set *on creation*'
     newvalues(/^\S+$/)
+    defaultto 'false'
   end
 
   newparam(:arguments) do