diff --git a/doc/guix.texi b/doc/guix.texi
index 2b27a675cd..cb28c61182 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -10188,9 +10188,9 @@ caching; when @code{#f}, the number of processors is used.
 @xref{Invoking guix publish, @option{--workers}}, for more information.
 
 @item @code{ttl} (default: @code{#f})
-When it is an integer, this denotes the @dfn{time-to-live} of the
-published archives.  @xref{Invoking guix publish, @option{--ttl}}, for
-more information.
+When it is an integer, this denotes the @dfn{time-to-live} in seconds
+of the published archives.  @xref{Invoking guix publish, @option{--ttl}},
+for more information.
 @end table
 @end deftp