diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d305b27c..ec963b25 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,6 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         rails:
+          - v7.1.0.rc2
           - v7.0.3
           - v6.1.6
         ruby:
@@ -38,6 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         rails:
+          - v7.1.0.rc2
           - v7.0.3
           - v6.1.6
         ruby:
@@ -72,6 +74,7 @@ jobs:
       fail-fast: false
       matrix:
         rails:
+          - v7.1.0.rc2
           - v7.0.3
           - v6.1.6
         ruby:
diff --git a/lib/ransack/adapters/active_record/context.rb b/lib/ransack/adapters/active_record/context.rb
index e0f0c652..48a6ea80 100644
--- a/lib/ransack/adapters/active_record/context.rb
+++ b/lib/ransack/adapters/active_record/context.rb
@@ -12,8 +12,9 @@ def relation_for(object)
 
         def type_for(attr)
           return nil unless attr && attr.valid?
+          relation     = attr.arel_attribute.relation
           name         = attr.arel_attribute.name.to_s
-          table        = attr.arel_attribute.relation.table_name
+          table        = relation.respond_to?(:table_name) ? relation.table_name : relation.name
           schema_cache = self.klass.connection.schema_cache
           unless schema_cache.send(:data_source_exists?, table)
             raise "No table named #{table} exists."