diff --git a/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/Server/index.html b/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/Server/index.html
index 126a1b19..959dd01f 100644
--- a/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/Server/index.html
+++ b/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/Server/index.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml"><head><title>Server (opentelemetry-cohttp-lwt.Opentelemetry_cohttp_lwt.Server)</title><link rel="stylesheet" href="../../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 2.1.0"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body class="odoc"><nav class="odoc-nav"><a href="../index.html">Up</a> – <a href="../../index.html">opentelemetry-cohttp-lwt</a> &#x00BB; <a href="../index.html">Opentelemetry_cohttp_lwt</a> &#x00BB; Server</nav><header class="odoc-preamble"><h1>Module <code><span>Opentelemetry_cohttp_lwt.Server</span></code></h1></header><div class="odoc-content"><div class="odoc-spec"><div class="spec value" id="val-trace" class="anchored"><a href="#val-trace" class="anchor"></a><code><span><span class="keyword">val</span> trace : 
-  <span>service_name:string <span class="arrow">&#45;&gt;</span></span>
+  <span>?service_name:string <span class="arrow">&#45;&gt;</span></span>
   <span>?attrs:<span><a href="../../../opentelemetry/Opentelemetry/Span/index.html#type-key_value">Otel.Span.key_value</a> list</span> <span class="arrow">&#45;&gt;</span></span>
   <span><span>( <span><span class="type-var">'conn</span> <span class="arrow">&#45;&gt;</span></span>
     <span><span class="xref-unresolved">Cohttp_lwt</span>.Request.t <span class="arrow">&#45;&gt;</span></span>
diff --git a/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/index.html b/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/index.html
index e9da9fcc..a2c6a558 100644
--- a/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/index.html
+++ b/dev/opentelemetry-cohttp-lwt/Opentelemetry_cohttp_lwt/index.html
@@ -1,2 +1,5 @@
 <!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Opentelemetry_cohttp_lwt (opentelemetry-cohttp-lwt.Opentelemetry_cohttp_lwt)</title><link rel="stylesheet" href="../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 2.1.0"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body class="odoc"><nav class="odoc-nav"><a href="../index.html">Up</a> – <a href="../index.html">opentelemetry-cohttp-lwt</a> &#x00BB; Opentelemetry_cohttp_lwt</nav><header class="odoc-preamble"><h1>Module <code><span>Opentelemetry_cohttp_lwt</span></code></h1></header><div class="odoc-content"><div class="odoc-spec"><div class="spec module" id="module-Otel" class="anchored"><a href="#module-Otel" class="anchor"></a><code><span><span class="keyword">module</span> Otel</span><span> = <a href="../../opentelemetry/Opentelemetry/index.html">Opentelemetry</a></span></code></div></div><div class="odoc-spec"><div class="spec module" id="module-Otel_lwt" class="anchored"><a href="#module-Otel_lwt" class="anchor"></a><code><span><span class="keyword">module</span> Otel_lwt</span><span> = <a href="../../opentelemetry-lwt/Opentelemetry_lwt/index.html">Opentelemetry_lwt</a></span></code></div></div><div class="odoc-spec"><div class="spec module" id="module-Server" class="anchored"><a href="#module-Server" class="anchor"></a><code><span><span class="keyword">module</span> <a href="Server/index.html">Server</a></span><span> : <span class="keyword">sig</span> ... <span class="keyword">end</span></span></code></div></div></div></body></html>
\ No newline at end of file
+<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Opentelemetry_cohttp_lwt (opentelemetry-cohttp-lwt.Opentelemetry_cohttp_lwt)</title><link rel="stylesheet" href="../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 2.1.0"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body class="odoc"><nav class="odoc-nav"><a href="../index.html">Up</a> – <a href="../index.html">opentelemetry-cohttp-lwt</a> &#x00BB; Opentelemetry_cohttp_lwt</nav><header class="odoc-preamble"><h1>Module <code><span>Opentelemetry_cohttp_lwt</span></code></h1></header><div class="odoc-content"><div class="odoc-spec"><div class="spec module" id="module-Otel" class="anchored"><a href="#module-Otel" class="anchor"></a><code><span><span class="keyword">module</span> Otel</span><span> = <a href="../../opentelemetry/Opentelemetry/index.html">Opentelemetry</a></span></code></div></div><div class="odoc-spec"><div class="spec module" id="module-Otel_lwt" class="anchored"><a href="#module-Otel_lwt" class="anchor"></a><code><span><span class="keyword">module</span> Otel_lwt</span><span> = <a href="../../opentelemetry-lwt/Opentelemetry_lwt/index.html">Opentelemetry_lwt</a></span></code></div></div><div class="odoc-spec"><div class="spec module" id="module-Server" class="anchored"><a href="#module-Server" class="anchor"></a><code><span><span class="keyword">module</span> <a href="Server/index.html">Server</a></span><span> : <span class="keyword">sig</span> ... <span class="keyword">end</span></span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-client" class="anchored"><a href="#val-client" class="anchor"></a><code><span><span class="keyword">val</span> client : 
+  <span>?scope:<a href="../../opentelemetry/Opentelemetry/Trace/index.html#type-scope">Otel.Trace.scope</a> <span class="arrow">&#45;&gt;</span></span>
+  <span><span>(<span class="keyword">module</span> <span class="xref-unresolved">Cohttp_lwt</span>.S.Client)</span> <span class="arrow">&#45;&gt;</span></span>
+  <span>(<span class="keyword">module</span> <span class="xref-unresolved">Cohttp_lwt</span>.S.Client)</span></span></code></div></div></div></body></html>
\ No newline at end of file
