diff --git a/src/engine/song.h b/src/engine/song.h
index ba2d60f3b..ba66337bc 100644
--- a/src/engine/song.h
+++ b/src/engine/song.h
@@ -114,7 +114,7 @@ enum DivSystem {
   DIV_SYSTEM_NAMCO_CUS30,
   DIV_SYSTEM_YM2612_FRAC,
   DIV_SYSTEM_YM2612_FRAC_EXT,
-  DIV_SYSTEM_RESERVED_8,
+  DIV_SYSTEM_MSM5232,
   DIV_SYSTEM_T6W28,
   DIV_SYSTEM_PCM_DAC,
   DIV_SYSTEM_DUMMY
diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index 82af63294..29b2f3d61 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -1604,13 +1604,12 @@ void DivEngine::registerSystems() {
     namcoEffectHandlerMap
   );
 
-  // replace with an 8-channel chip in a future
-  sysDefs[DIV_SYSTEM_RESERVED_8]=new DivSysDef(
-    "Reserved", NULL, 0xbc, 0, 8, false, true, 0, false, 0,
-    "this was YM2612_FRAC, but due to changes this ID is reserved.",
+  sysDefs[DIV_SYSTEM_MSM5232]=new DivSysDef(
+    "OKI MSM5232", NULL, 0xbc, 0, 8, false, true, 0, false, 0,
+    "a square wave additive synthesis chip made by OKI. used in some arcade machines and instruments.",
     {"Channel 1", "Channel 2", "Channel 3", "Channel 4", "Channel 5", "Channel 6", "Channel 7", "Channel 8"},
     {"CH1", "CH2", "CH3", "CH4", "CH5", "CH6", "CH7", "CH8"},
-    {DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE, DIV_CH_NOISE},
+    {DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE},
     {DIV_INS_STD, DIV_INS_STD, DIV_INS_STD, DIV_INS_STD, DIV_INS_STD, DIV_INS_STD, DIV_INS_STD, DIV_INS_STD}
   );