diff --git a/lib/ferrum/contexts.rb b/lib/ferrum/contexts.rb
index 74d098fc..2953f2f6 100644
--- a/lib/ferrum/contexts.rb
+++ b/lib/ferrum/contexts.rb
@@ -95,7 +95,7 @@ def subscribe # rubocop:disable Metrics/PerceivedComplexity, Metrics/CyclomaticC
 
         if info["type"] == "iframe" &&
            (target = @contexts[context_id]&.find_target { |t| t.connected? && t.page.frame_by(id: info["targetId"]) })
-          @contexts[context_id]&.add_target(session_id: target.page.client.session_id, params: info)
+          @contexts[context_id]&.add_target(session_id: target.session_id, params: info)
         else
           @contexts[context_id]&.add_target(params: info)
         end