diff --git a/src/lib/Hydra/Helper/Email.pm b/src/lib/Hydra/Helper/Email.pm
index e628fca3..44366f43 100644
--- a/src/lib/Hydra/Helper/Email.pm
+++ b/src/lib/Hydra/Helper/Email.pm
@@ -1,13 +1,14 @@
 package Hydra::Helper::Email;
 
 use strict;
-use Exporter 'import';
-use Email::Sender::Simple qw(sendmail);
 use Email::MIME;
+use Email::Sender::Simple qw(sendmail);
+use Exporter 'import';
 use File::Slurp;
+use Hydra::Helper::Nix;
 use Sys::Hostname::Long;
 
-our @EXPORT = qw(sendEmail getBaseUrl);
+our @EXPORT = qw(sendEmail);
 
 sub sendEmail {
     my ($config, $to, $subject, $body, $extraHeaders) = @_;
@@ -41,9 +42,4 @@ sub sendEmail {
     }
 }
 
-sub getBaseUrl {
-    my ($config) = @_;
-    return $config->{'base_uri'} // "http://" . hostname_long . ":3000";
-}
-
 1;
diff --git a/src/lib/Hydra/Helper/Nix.pm b/src/lib/Hydra/Helper/Nix.pm
index 1d1747c0..ca41d99b 100644
--- a/src/lib/Hydra/Helper/Nix.pm
+++ b/src/lib/Hydra/Helper/Nix.pm
@@ -9,10 +9,11 @@ use Hydra::Helper::CatalystUtils;
 use Hydra::Model::DB;
 use Nix::Store;
 use Encode;
+use Sys::Hostname::Long;
 
 our @ISA = qw(Exporter);
 our @EXPORT = qw(
-    getHydraHome getHydraConfig txn_do
+    getHydraHome getHydraConfig getBaseUrl txn_do
     getSCMCacheDir
     registerRoot getGCRootsDir gcRootFor
     jobsetOverview jobsetOverview_
@@ -39,6 +40,12 @@ sub getHydraConfig {
 }
 
 
+sub getBaseUrl {
+    my ($config) = @_;
+    return $config->{'base_uri'} // "http://" . hostname_long . ":3000";
+}
+
+
 # Awful hack to handle timeouts in SQLite: just retry the transaction.
 # DBD::SQLite *has* a 30 second retry window, but apparently it
 # doesn't work.