diff --git a/documentation/ref-manual/introduction.xml b/documentation/ref-manual/introduction.xml
index b1a5c0e175..3e071baebd 100644
--- a/documentation/ref-manual/introduction.xml
+++ b/documentation/ref-manual/introduction.xml
@@ -358,7 +358,7 @@
If downloading a pre-built tarball, locate the
*.sh at
- .
+ .