diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 0ea662f310a9df22f7c6c7378cc791027f671f84..cd6c6f8d1fa15dadb187d0e26e2a9362bbf3b06a 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -135,9 +135,7 @@ def build_arel
 
       arel = build_joins(arel, @joins_values) unless @joins_values.empty?
 
-      @where_values.uniq.each do |where|
-        next if where.blank?
-
+      (@where_values - ['']).uniq.each do |where|
         case where
         when Arel::SqlLiteral
           arel = arel.where(where)