diff --git a/lib/puppet/provider/php_extension/pecl.rb b/lib/puppet/provider/php_extension/pecl.rb
index b0bcded..309d492 100644
--- a/lib/puppet/provider/php_extension/pecl.rb
+++ b/lib/puppet/provider/php_extension/pecl.rb
@@ -4,7 +4,7 @@
   include Puppet::Util::Execution
   desc "Provides PHP extensions compiled from their pecl source code"
 
-  defaultfor :source => :pecl
+  defaultfor :operatingsystem => :darwin
 
   # Build and install our PHP extension
   def create
diff --git a/lib/puppet/type/php_extension.rb b/lib/puppet/type/php_extension.rb
index d63ea19..800c76a 100644
--- a/lib/puppet/type/php_extension.rb
+++ b/lib/puppet/type/php_extension.rb
@@ -51,10 +51,6 @@
     defaultto ''
   end
 
-  newparam(:source) do
-    defaultto :pecl
-  end
-
   # Some PECL modules have a different module layout and the php extension
   # source in not in the root directory (e.g. xhprof)
   newparam(:extension_dir) do