1 files changed, 10 insertions, 1 deletions
diff --git a/lib/arel/visitors/to_sql.rb b/lib/arel/visitors/to_sql.rb
index 8638bf43c3..761f315763 100644
--- a/lib/arel/visitors/to_sql.rb
+++ b/lib/arel/visitors/to_sql.rb
@@ -159,7 +159,6 @@ module Arel
       def visit_Arel_Nodes_Equality o
         right = o.right
 
-        # FIXME: maybe we should visit NilClass?
         if right.nil?
           "#{visit o.left} IS NULL"
         else
@@ -167,6 +166,16 @@ module Arel
         end
       end
 
+      def visit_Arel_Nodes_NotEqual o
+        right = o.right
+
+        if right.nil?
+          "#{visit o.left} IS NOT NULL"
+        else
+          "#{visit o.left} != #{visit right}"
+        end
+      end
+
       def visit_Arel_Nodes_UnqualifiedColumn o
         "#{quote_column_name o.name}"
       end