diff --git a/src/gui/gui.h b/src/gui/gui.h
index 0a3b9b013..59413e3e1 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2217,7 +2217,7 @@ class FurnaceGUI {
       maxUndoSteps(100),
       vibrationStrength(0.5f),
       vibrationLength(20),
-      s3mOPL3(0),
+      s3mOPL3(1),
       mainFontPath(""),
       headFontPath(""),
       patFontPath(""),
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index ae085f072..16414eab0 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -4754,7 +4754,7 @@ void FurnaceGUI::readConfig(DivConfig& conf, FurnaceGUISettingGroups groups) {
     settings.vibrationStrength=conf.getFloat("vibrationStrength",0.5f);
     settings.vibrationLength=conf.getInt("vibrationLength",20);
 
-    settings.s3mOPL3=conf.getInt("s3mOPL3",0);
+    settings.s3mOPL3=conf.getInt("s3mOPL3",1);
 
     settings.backupEnable=conf.getInt("backupEnable",1);
     settings.backupInterval=conf.getInt("backupInterval",30);