diff --git a/src/devices/sound/upd1771.cpp b/src/devices/sound/upd1771.cpp
index 0e24aedbe26..067f681f581 100644
--- a/src/devices/sound/upd1771.cpp
+++ b/src/devices/sound/upd1771.cpp
@@ -4,7 +4,7 @@
 
     NEC uPD1771-017 as used in the Epoch Super Cassette Vision (SCV)
 
-    Made using recording/analysis on a Yeno (PAL Super Cassete Vision)
+    Made using recording/analysis on a Yeno (PAL Super Cassette Vision)
     by plgDavid
 
     Full markings on my 2 specimens are
@@ -95,7 +95,7 @@
     uPD1771C-006: used in NEC APC for sound as the "MPU"
             -011: used on Firefox F-4/Astro Thunder handheld
             -015: unknown, known to exist from part scalper sites only.
-            -017: used on Epoch Super Cassete Vision for sound; This audio driver HLEs that part only.
+            -017: used on Epoch Super Cassette Vision for sound; This audio driver HLEs that part only.
 
      Used pinout in the SCV: