diff --git a/sound/credits.txt b/sound/credits.txt
index 1e66a2c70..2c91ffcca 100644
--- a/sound/credits.txt
+++ b/sound/credits.txt
@@ -241,6 +241,7 @@ spompeytransportvideo-class-52.wav
 spompeytransportvideo-class-205.wav
 spompeytransportvideo-class-08.wav
 spompeytransportvideo-class-42.wav
+spompeytransportvideo-class-85.wav
 (Artistic Licence 1.0)
 
 androo4519
diff --git a/sound/spompeytransportvideo-class-85.wav b/sound/spompeytransportvideo-class-85.wav
new file mode 100644
index 000000000..ddd0adfbf
Binary files /dev/null and b/sound/spompeytransportvideo-class-85.wav differ
diff --git a/trains/br-cl81.dat b/trains/br-cl81.dat
index 50118b34f..97b38d34c 100644
--- a/trains/br-cl81.dat
+++ b/trains/br-cl81.dat
@@ -23,7 +23,7 @@ axles=4
 cost=8785000
 runningcost=479
 fixed_cost=16101
-sound=treacher-rail-class-86.wav
+sound=spompeytransportvideo-class-85.wav
 increase_maintenance_after_years=20
 
 can_lead_from_rear=0
diff --git a/trains/br-cl85.dat b/trains/br-cl85.dat
index 945384804..8202085da 100644
--- a/trains/br-cl85.dat
+++ b/trains/br-cl85.dat
@@ -22,7 +22,7 @@ axles=4
 cost=8801000
 runningcost=456
 fixed_cost=16100
-sound=treacher-rail-class-86.wav
+sound=spompeytransportvideo-class-85.wav
 increase_maintenance_after_years=20
 
 can_lead_from_rear=0