@@ 110,10 110,13 @@ actually installing them. So that you can distinguish between your
To that end, all the command-line tools can be used even if you have not
run @code{make install}. To do that, prefix each command with
@command{./pre-inst-env} (the @file{pre-inst-env} script lives in the
-top build tree of Guix), as in:
+top build tree of Guix), as in@footnote{The @option{-E} flag to
+@command{sudo} guarantees that @code{GUILE_LOAD_PATH} is correctly set
+such that @command{guix-daemon} and the tools it uses can find the Guile
+modules they need.}:
@example
-$ sudo ./pre-inst-env guix-daemon --build-users-group=guixbuild
+$ sudo -E ./pre-inst-env guix-daemon --build-users-group=guixbuild
$ ./pre-inst-env guix build hello
@end example