diff --git a/asciidoc/install-asciidoc.adoc b/asciidoc/install-asciidoc.adoc
index 8361a5c..9101bfd 100644
--- a/asciidoc/install-asciidoc.adoc
+++ b/asciidoc/install-asciidoc.adoc
@@ -45,7 +45,7 @@ swarmlab-adoc
 
 TIP: swarmlab-adoc convert all *.adoc files recursiva in html5 and pdf
 
-.If you need to convert only a  file
+.If you need to convert only one  file
 [NOTE]
 ====
 ```