diff --git a/lib/debug/server.rb b/lib/debug/server.rb
index a67922ac1..7141ce295 100644
--- a/lib/debug/server.rb
+++ b/lib/debug/server.rb
@@ -410,7 +410,7 @@ def chrome_setup
       DEBUGGER__.warn <<~EOS
         With Chrome browser, type the following URL in the address-bar:
 
-           devtools://devtools/bundled/inspector.html?v8only=true&panel=sources&ws=#{@local_addr.inspect_sockaddr}/#{@uuid}
+           devtools://devtools/bundled/inspector.html?v8only=true&panel=sources&noJavaScriptCompletion=true&ws=#{@local_addr.inspect_sockaddr}/#{@uuid}
 
         EOS
     end
diff --git a/lib/debug/server_cdp.rb b/lib/debug/server_cdp.rb
index 397703aa6..d4e012fe2 100644
--- a/lib/debug/server_cdp.rb
+++ b/lib/debug/server_cdp.rb
@@ -59,7 +59,7 @@ def setup_chrome addr, uuid
             ws_client.send sessionId: s_id, id: 5,
                           method: 'Page.navigate',
                           params: {
-                            url: "devtools://devtools/bundled/inspector.html?v8only=true&panel=sources&ws=#{addr}/#{uuid}",
+                            url: "devtools://devtools/bundled/inspector.html?v8only=true&panel=sources&noJavaScriptCompletion=true&ws=#{addr}/#{uuid}",
                             frameId: f_id
                           }
           when 101