diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index cf42741db..0ec5cb48c 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -328,7 +328,7 @@ void DivPlatformYM2608::acquire_combo(short* bufL, short* bufR, size_t start, si
         if (--delay<1 && !(fm->read(0)&0x80)) {
           QueuedWrite& w=writes.front();
 
-          if (w.addr<=0x1c || w.addr==0x2d || w.addr==0x2e || w.addr==0x2f || (w.addr>=0x100 && w.addr<=0x12d)) {
+          if (w.addr<=0x1d || w.addr==0x2d || w.addr==0x2e || w.addr==0x2f || (w.addr>=0x100 && w.addr<=0x12d)) {
             // ymfm write
             fm->write(0x0+((w.addr>>8)<<1),w.addr);
             fm->write(0x1+((w.addr>>8)<<1),w.val);