2 files changed, 4 insertions, 1 deletions
diff --git a/lib/arel/visitors/dot.rb b/lib/arel/visitors/dot.rb
index ebbb211dd6..abf28968cf 100644
--- a/lib/arel/visitors/dot.rb
+++ b/lib/arel/visitors/dot.rb
@@ -94,6 +94,7 @@ module Arel
       alias :visit_Time :visit_String
       alias :visit_NilClass :visit_String
       alias :visit_TrueClass :visit_String
+      alias :visit_FalseClass :visit_String
       alias :visit_Arel_SqlLiteral :visit_String
       alias :visit_Fixnum :visit_String
       alias :visit_Symbol :visit_String
diff --git a/lib/arel/visitors/to_sql.rb b/lib/arel/visitors/to_sql.rb
index 093deedee5..f70cae9430 100644
--- a/lib/arel/visitors/to_sql.rb
+++ b/lib/arel/visitors/to_sql.rb
@@ -151,7 +151,8 @@ module Arel
 
       def visit_Arel_Nodes_Equality o
         right = o.right
-        right = right ? visit(right) : 'NULL'
+        # FIXME: maybe we should visit NilClass?
+        right = right.nil? ? 'NULL' : visit(right)
         "#{visit o.left} = #{right}"
       end
 
@@ -179,6 +180,7 @@ module Arel
       def visit_DateTime o; quote(o) end
       def visit_Float o; quote(o) end
       def visit_BigDecimal o; quote(o) end
+      def visit_FalseClass o; quote(o) end
 
       DISPATCH = {}
       def visit object