diff --git a/C4/Reserves.pm b/C4/Reserves.pm
index 77c7bd97d7..7bb5d694d4 100644
--- a/C4/Reserves.pm
+++ b/C4/Reserves.pm
@@ -2338,7 +2338,7 @@ sub GetReserveId {
 
 Returns letter hash ( see C4::Letters::GetPreparedLetter ) or undef
 
-The letter code will be RESERVESLIP, and the following tables are
+The letter code will be HOLD_SLIP, and the following tables are
 available within the slip:
 
     reserves
@@ -2363,7 +2363,7 @@ sub ReserveSlip {
 
     return  C4::Letters::GetPreparedLetter (
         module => 'circulation',
-        letter_code => 'RESERVESLIP',
+        letter_code => 'HOLD_SLIP',
         branchcode => $branch,
         tables => {
             'reserves'    => $reserve,
diff --git a/installer/data/mysql/atomicupdate/bug_15443.sql b/installer/data/mysql/atomicupdate/bug_15443.sql
new file mode 100644
index 0000000000..742e99671c
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_15443.sql
@@ -0,0 +1 @@
+UPDATE letter SET code = "HOLD_SLIP" WHERE code = "RESERVESLIP";
diff --git a/installer/data/mysql/de-DE/mandatory/sample_notices.sql b/installer/data/mysql/de-DE/mandatory/sample_notices.sql
index b968cff3f5..fec6f7ed5b 100644
--- a/installer/data/mysql/de-DE/mandatory/sample_notices.sql
+++ b/installer/data/mysql/de-DE/mandatory/sample_notices.sql
@@ -71,7 +71,7 @@ Signatur: <<items.itemcallnumber>><br/>
 Fällig am: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Vormerkquittung','Vormerkquittung', '<h2>Vormerkung</h2>
+('circulation','HOLD_SLIP','Vormerkquittung','Vormerkquittung', '<h2>Vormerkung</h2>
 <h4>Abholbereit seit: <<today>></h4>
 <br/>
 Bibliothek: <<branches.branchname>> <br/>
diff --git a/installer/data/mysql/en/mandatory/sample_notices.sql b/installer/data/mysql/en/mandatory/sample_notices.sql
index ec07c94bb2..2e25cfff5a 100644
--- a/installer/data/mysql/en/mandatory/sample_notices.sql
+++ b/installer/data/mysql/en/mandatory/sample_notices.sql
@@ -77,7 +77,7 @@ Barcode: <<items.barcode>><br />
 Date due: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
 
 <h3> Transfer to/Hold in <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/es-ES/mandatory/sample_notices.sql b/installer/data/mysql/es-ES/mandatory/sample_notices.sql
index e2141a61b9..8aa2a4bdce 100644
--- a/installer/data/mysql/es-ES/mandatory/sample_notices.sql
+++ b/installer/data/mysql/es-ES/mandatory/sample_notices.sql
@@ -69,7 +69,7 @@ Barcode: <<items.barcode>><br />
 Date due: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
 
 <h3> Transfer to/Hold in <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/fr-FR/1-Obligatoire/sample_notices.sql b/installer/data/mysql/fr-FR/1-Obligatoire/sample_notices.sql
index a5d3591bcc..2e66a2e6ac 100644
--- a/installer/data/mysql/fr-FR/1-Obligatoire/sample_notices.sql
+++ b/installer/data/mysql/fr-FR/1-Obligatoire/sample_notices.sql
@@ -71,7 +71,7 @@ Code à barres : <<items.barcode>><br />
 Retour le : <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Ticket de réservation','Ticket de réservation', '<h5>Date : <<today>></h5>
+('circulation','HOLD_SLIP','Ticket de réservation','Ticket de réservation', '<h5>Date : <<today>></h5>
 
 <h3> Transfert vers/Réservé à <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/it-IT/necessari/notices.sql b/installer/data/mysql/it-IT/necessari/notices.sql
index e6cc9f43cb..53869dd765 100644
--- a/installer/data/mysql/it-IT/necessari/notices.sql
+++ b/installer/data/mysql/it-IT/necessari/notices.sql
@@ -71,7 +71,7 @@ Codice a barre: <<items.barcode>><br />
 Data di scadenza: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Ricevuta (prenotazione)', '<h5>Data: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Ricevuta (prenotazione)', '<h5>Data: <<today>></h5>
 
 <h3> Trasferita a/Prenotata in <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/nb-NO/1-Obligatorisk/sample_notices.sql b/installer/data/mysql/nb-NO/1-Obligatorisk/sample_notices.sql
index 8a1b51de2f..9ff55762ca 100644
--- a/installer/data/mysql/nb-NO/1-Obligatorisk/sample_notices.sql
+++ b/installer/data/mysql/nb-NO/1-Obligatorisk/sample_notices.sql
@@ -92,7 +92,7 @@ Strekkode: <<items.barcode>><br />
 Innleveringsfrist: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Reservasjon','Reservasjon', '<h5>Dato: <<today>></h5>
+('circulation','HOLD_SLIP','Reservasjon','Reservasjon', '<h5>Dato: <<today>></h5>
 
 <h3> Overfør til/Reservasjon hos <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/pl-PL/mandatory/sample_notices.sql b/installer/data/mysql/pl-PL/mandatory/sample_notices.sql
index be95f0d2df..2277cfb14f 100644
--- a/installer/data/mysql/pl-PL/mandatory/sample_notices.sql
+++ b/installer/data/mysql/pl-PL/mandatory/sample_notices.sql
@@ -70,7 +70,7 @@ Barcode: <<items.barcode>><br />
 Date due: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
 
 <h3> Transfer to/Hold in <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/ru-RU/mandatory/sample_notices.sql b/installer/data/mysql/ru-RU/mandatory/sample_notices.sql
index b51660d54b..dc3e3409cb 100644
--- a/installer/data/mysql/ru-RU/mandatory/sample_notices.sql
+++ b/installer/data/mysql/ru-RU/mandatory/sample_notices.sql
@@ -70,7 +70,7 @@ Barcode: <<items.barcode>><br />
 Date due: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
 
 <h3> Transfer to/Hold in <<branches.branchname>></h3>
 
diff --git a/installer/data/mysql/uk-UA/mandatory/sample_notices.sql b/installer/data/mysql/uk-UA/mandatory/sample_notices.sql
index cd4da03346..db35561e42 100644
--- a/installer/data/mysql/uk-UA/mandatory/sample_notices.sql
+++ b/installer/data/mysql/uk-UA/mandatory/sample_notices.sql
@@ -69,7 +69,7 @@ Barcode: <<items.barcode>><br />
 Date due: <<issues.date_due>><br />
 </p>
 </checkedout>', 1),
-('circulation','RESERVESLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
+('circulation','HOLD_SLIP','Hold Slip','Hold Slip', '<h5>Date: <<today>></h5>
 
 <h3> Transfer to/Hold in <<branches.branchname>></h3>
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/help/tools/letter.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/help/tools/letter.tt
index 09692d39c6..ef1c5e4944 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/help/tools/letter.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/help/tools/letter.tt
@@ -278,7 +278,7 @@ Barcode: &lt;&lt;items.barcode&gt;&gt; , Checkout date:
     <li>The slip or receipt will show items checked out today as well as items that are still checked out</li>
 </ul>
 </li>
-    <li>RESERVESLIP
+    <li>HOLD_SLIP
 <ul>
     <li>Used to print a holds slip</li>
     <li>The holds slip is generated when a hold is confirmed</li>