diff --git a/documentation/content/en/books/fdp-primer/doc-build/_index.adoc b/documentation/content/en/books/fdp-primer/doc-build/_index.adoc
--- a/documentation/content/en/books/fdp-primer/doc-build/_index.adoc
+++ b/documentation/content/en/books/fdp-primer/doc-build/_index.adoc
@@ -136,11 +136,11 @@
 ....
 This webserver runs on `localhost`, port `1313` by default.
 
-To serve the content with Hugo’s internal webserver binding a specific IP address:
+To serve the content with Hugo’s internal webserver binding a specific IP address and port:
 
 [source,shell]
 ....
-% make run BIND=192.168.15.10
+% make run BIND=192.168.15.10 HUGO_ARGS="-p 8080"
 ....
 
 A `hostname` can also be set as base url to Hugo’s internal webserver: