diff --git a/src/engine/instrument.h b/src/engine/instrument.h
index da7356f1..abee4223 100644
--- a/src/engine/instrument.h
+++ b/src/engine/instrument.h
@@ -48,7 +48,9 @@ enum DivInstrumentType {
   DIV_INS_BEEPER=21,
   DIV_INS_SWAN=22,
   DIV_INS_MIKEY=23,
-  DIV_INS_X1_010=24,
+  DIV_INS_VERA=24,
+  DIV_INS_X1_010=25,
+  DIV_INS_MAX,
 };
 
 // FM operator structure:
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index 29085c56..35059804 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -788,9 +788,9 @@ void FurnaceGUI::drawInsEdit() {
     } else {
       DivInstrument* ins=e->song.ins[curIns];
       ImGui::InputText("Name",&ins->name);
-      if (ins->type<0 || ins->type>24) ins->type=DIV_INS_FM;
+      if (ins->type<0 || ins->type>=DIV_INS_MAX) ins->type=DIV_INS_FM;
       int insType=ins->type;
-      if (ImGui::Combo("Type",&insType,insTypes,25,25)) {
+      if (ImGui::Combo("Type",&insType,insTypes,DIV_INS_MAX,DIV_INS_MAX)) {
         ins->type=(DivInstrumentType)insType;
       }