diff --git a/src/engine/instrument.h b/src/engine/instrument.h
index c295b4d2e..d18cbc329 100644
--- a/src/engine/instrument.h
+++ b/src/engine/instrument.h
@@ -94,7 +94,7 @@ enum DivInstrumentType: unsigned short {
   DIV_INS_GBA_MINMOD=61,
   DIV_INS_BIFURCATOR=62,
   DIV_INS_SID2=63, // coincidence!
-  DIV_INS_SID3=64,
+  DIV_INS_SID3=66,
   DIV_INS_MAX,
   DIV_INS_NULL
 };