diff --git a/engines/kyra/module.mk b/engines/kyra/module.mk
index 9c20ad65692..98494bc19f1 100644
--- a/engines/kyra/module.mk
+++ b/engines/kyra/module.mk
@@ -61,11 +61,11 @@ MODULE_OBJS := \
 	sequence/sequences_hof.o \
 	sequence/sequences_mr.o \
 	sound/sound_adlib.o \
-	sound/sound_amiga.o \
-	sound/sound_digital.o \
+	sound/sound_amiga_lok.o \
+	sound/sound_digital_mr.o \
 	sound/sound_midi.o \
 	sound/sound_pcspk.o \
-	sound/sound_towns.o \
+	sound/sound_towns_lok.o \
 	sound/sound.o \
 	sound/sound_lok.o \
 	text/text.o \
diff --git a/engines/kyra/sound/sound_amiga.cpp b/engines/kyra/sound/sound_amiga_lok.cpp
similarity index 100%
rename from engines/kyra/sound/sound_amiga.cpp
rename to engines/kyra/sound/sound_amiga_lok.cpp
diff --git a/engines/kyra/sound/sound_digital.cpp b/engines/kyra/sound/sound_digital_mr.cpp
similarity index 100%
rename from engines/kyra/sound/sound_digital.cpp
rename to engines/kyra/sound/sound_digital_mr.cpp
diff --git a/engines/kyra/sound/sound_digital.h b/engines/kyra/sound/sound_digital_mr.h
similarity index 100%
rename from engines/kyra/sound/sound_digital.h
rename to engines/kyra/sound/sound_digital_mr.h
diff --git a/engines/kyra/sound/sound_towns.cpp b/engines/kyra/sound/sound_towns_lok.cpp
similarity index 100%
rename from engines/kyra/sound/sound_towns.cpp
rename to engines/kyra/sound/sound_towns_lok.cpp