diff --git a/lib/puppet/provider/mysql.rb b/lib/puppet/provider/mysql.rb
index 4645434..98118c2 100644
--- a/lib/puppet/provider/mysql.rb
+++ b/lib/puppet/provider/mysql.rb
@@ -8,7 +8,7 @@ class Puppet::Provider::Mysql < Puppet::Provider
   # Optional defaults file
   def self.defaults_file
     if File.file?("#{Facter.value(:root_home)}/.my.cnf")
-      "--defaults-file=#{Facter.value(:root_home)}/.my.cnf"
+      "--defaults-extra-file=#{Facter.value(:root_home)}/.my.cnf"
     else
       nil
     end
diff --git a/lib/puppet/provider/mysql_database/mysql.rb b/lib/puppet/provider/mysql_database/mysql.rb
index eea0a1b..68f6002 100644
--- a/lib/puppet/provider/mysql_database/mysql.rb
+++ b/lib/puppet/provider/mysql_database/mysql.rb
@@ -5,7 +5,7 @@ Puppet::Type.type(:mysql_database).provide(:mysql) do
 
   def self.defaults_file
     if File.file?("#{Facter.value(:root_home)}/.my.cnf")
-      "--defaults-file=#{Facter.value(:root_home)}/.my.cnf"
+      "--defaults-extra-file=#{Facter.value(:root_home)}/.my.cnf"
     else
       nil
     end
diff --git a/lib/puppet/provider/mysql_user/mysql.rb b/lib/puppet/provider/mysql_user/mysql.rb
index f05a606..92b475c 100644
--- a/lib/puppet/provider/mysql_user/mysql.rb
+++ b/lib/puppet/provider/mysql_user/mysql.rb
@@ -7,7 +7,7 @@ Puppet::Type.type(:mysql_user).provide(:mysql, :parent => Puppet::Provider::Mysq
   # Optional defaults file
   def self.defaults_file
     if File.file?("#{Facter.value(:root_home)}/.my.cnf")
-      "--defaults-file=#{Facter.value(:root_home)}/.my.cnf"
+      "--defaults-extra-file=#{Facter.value(:root_home)}/.my.cnf"
     else
       nil
     end