diff --git a/renderer/brave_content_renderer_client.cc b/renderer/brave_content_renderer_client.cc
index fa77b33eaa17..7778df91dbb0 100644
--- a/renderer/brave_content_renderer_client.cc
+++ b/renderer/brave_content_renderer_client.cc
@@ -43,6 +43,8 @@ void BraveContentRendererClient::
         "FileSystemAccessAPIExperimental", false);
   }
   blink::WebRuntimeFeatures::EnableFeatureFromString("Serial", false);
+  blink::WebRuntimeFeatures::EnableFeatureFromString(
+      "SpeculationRulesPrefetchProxy", false);
 }
 
 BraveContentRendererClient::~BraveContentRendererClient() = default;