diff --git a/doc/guix.texi b/doc/guix.texi
index 598d3d6773..e0f6921a90 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -19539,7 +19539,7 @@ configuration.
 @item @code{ident-file} (default: @code{%default-postgres-ident})
 Filename or G-expression for the user name mapping configuration.
 
-@item @code{socket-directory} (default: @code{"/var/lib/postgresql"})
+@item @code{socket-directory} (default: @code{"/var/run/postgresql"})
 Specifies the directory of the Unix-domain socket(s) on which PostgreSQL
 is to listen for connections from client applications.  If set to
 @code{#false} PostgreSQL does not listen on any Unix-domain sockets, in