diff --git a/lib/grover/js/processor.cjs b/lib/grover/js/processor.cjs
index d549e57..8806021 100644
--- a/lib/grover/js/processor.cjs
+++ b/lib/grover/js/processor.cjs
@@ -110,6 +110,12 @@ const _processPage = (async (convertAction, uriOrHtml, options) => {
         launchParams.timeout = launchTimeout;
       }
 
+      // Set protocol timeout if given (controls CDP message round-trip timeout)
+      const protocolTimeout = options.protocolTimeout; delete options.protocolTimeout;
+      if (protocolTimeout !== undefined) {
+        launchParams.protocolTimeout = protocolTimeout;
+      }
+
       // Launch the browser and create a page
       browser = await puppeteer.launch(launchParams);
     }
diff --git a/lib/grover/options_fixer.rb b/lib/grover/options_fixer.rb
index 4e66a1e..0f8b7c3 100644
--- a/lib/grover/options_fixer.rb
+++ b/lib/grover/options_fixer.rb
@@ -46,7 +46,7 @@ def fix_boolean_options!
     def fix_integer_options!
       fix_options!(
         'viewport.height', 'viewport.width',
-        'timeout', 'launch_timeout', 'request_timeout', 'convert_timeout', 'wait_for_timeout',
+        'timeout', 'launch_timeout', 'protocol_timeout', 'request_timeout', 'convert_timeout', 'wait_for_timeout',
         &:to_i
       )
     end