2 files changed, 8 insertions, 0 deletions
diff --git a/lib/arel/engines/sql/core_extensions/nil_class.rb b/lib/arel/engines/sql/core_extensions/nil_class.rb
index 3f70677ba6..d4bb0e4c33 100644
--- a/lib/arel/engines/sql/core_extensions/nil_class.rb
+++ b/lib/arel/engines/sql/core_extensions/nil_class.rb
@@ -4,6 +4,10 @@ module Arel
       def equality_predicate_sql
         'IS'
       end
+      
+      def inequality_predicate_sql
+        'IS NOT'
+      end
 
       def not_predicate_sql
         'IS NOT'
diff --git a/lib/arel/engines/sql/core_extensions/object.rb b/lib/arel/engines/sql/core_extensions/object.rb
index b71ef29fd5..5415c84706 100644
--- a/lib/arel/engines/sql/core_extensions/object.rb
+++ b/lib/arel/engines/sql/core_extensions/object.rb
@@ -8,6 +8,10 @@ module Arel
       def equality_predicate_sql
         '='
       end
+      
+      def inequality_predicate_sql
+        '!='
+      end
 
       def not_predicate_sql
         '!='