diff --git a/multi/multi__customizations.html b/multi/multi__customizations.html
index 6ba45bb2b..2555d14b8 100644
--- a/multi/multi__customizations.html
+++ b/multi/multi__customizations.html
@@ -42,6 +42,7 @@ You can customize the tags or modify the response headers by registering your ow
 			FilterChain chain) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> IOException, ServletException {
 		Span currentSpan = <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">this</span>.tracer.currentSpan();
 		<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">if</span> (currentSpan == null) {
+			chain.doFilter(request, response);
 			<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span>;
 		}
 		<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// for readability we're returning trace id in a hex form</span>
diff --git a/single/spring-cloud-sleuth.html b/single/spring-cloud-sleuth.html
index cc8423089..2c4ceaf3d 100644
--- a/single/spring-cloud-sleuth.html
+++ b/single/spring-cloud-sleuth.html
@@ -638,6 +638,7 @@ You can customize the tags or modify the response headers by registering your ow
 			FilterChain chain) <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">throws</span> IOException, ServletException {
 		Span currentSpan = <span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">this</span>.tracer.currentSpan();
 		<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">if</span> (currentSpan == null) {
+			chain.doFilter(request, response);
 			<span xmlns:d="http://docbook.org/ns/docbook" class="hl-keyword">return</span>;
 		}
 		<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment">// for readability we're returning trace id in a hex form</span>
diff --git a/spring-cloud-sleuth.xml b/spring-cloud-sleuth.xml
index 5a7e8ec6b..bacc945b3 100644
--- a/spring-cloud-sleuth.xml
+++ b/spring-cloud-sleuth.xml
@@ -1434,6 +1434,7 @@ class MyFilter extends GenericFilterBean {
 			FilterChain chain) throws IOException, ServletException {
 		Span currentSpan = this.tracer.currentSpan();
 		if (currentSpan == null) {
+			chain.doFilter(request, response);
 			return;
 		}
 		// for readability we're returning trace id in a hex form