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-rw-r--r--doc/guix.texi9
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 456dfb264d..1069a5d296 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -19830,12 +19830,15 @@ 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/run/postgresql"})
+@item @code{socket-directory} (default: @code{#false})
 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
+is to listen for connections from client applications. If set to
+@code{""} PostgreSQL does not listen on any Unix-domain sockets, in
 which case only TCP/IP sockets can be used to connect to the server.
 
+By default, the @code{#false} value means the PostgreSQL default value
+will be used, which is currently @samp{/tmp}.
+
 @item @code{extra-config} (default: @code{'()})
 List of additional keys and values to include in the PostgreSQL config
 file.  Each entry in the list should be a list where the first element