1 files changed, 5 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/testing/integration.rb b/actionpack/lib/action_dispatch/testing/integration.rb
index 8ab490642e..f5ec28a9c2 100644
--- a/actionpack/lib/action_dispatch/testing/integration.rb
+++ b/actionpack/lib/action_dispatch/testing/integration.rb
@@ -420,9 +420,13 @@ module ActionDispatch
 
       attr_reader :app
 
+      def initialize(*args, &blk)
+        super(*args, &blk)
+        @integration_session = nil
+      end
+
       def before_setup # :nodoc:
         @app = nil
-        @integration_session ||= nil
         super
       end