diff --git a/spring-boot-docs/src/main/asciidoc/howto.adoc b/spring-boot-docs/src/main/asciidoc/howto.adoc
index 88afdcc90b..5b375812a8 100644
--- a/spring-boot-docs/src/main/asciidoc/howto.adoc
+++ b/spring-boot-docs/src/main/asciidoc/howto.adoc
@@ -420,7 +420,7 @@ that sets up the connector to be secure:
 		@Override
 		public void customize(ConfigurableEmbeddedServletContainer factory) {
 			if(factory instanceof TomcatEmbeddedServletContainerFactory) {
-				customizeTomcat((TomcatEmbeddedServletContainerFactory) factory));
+				customizeTomcat((TomcatEmbeddedServletContainerFactory) factory);
 			}
 		}