1 files changed, 3 insertions, 4 deletions
diff --git a/al/eax/fx_slot_index.h b/al/eax/fx_slot_index.h
index 63dba037..9f350d9b 100644
--- a/al/eax/fx_slot_index.h
+++ b/al/eax/fx_slot_index.h
@@ -3,17 +3,16 @@
 
 
 #include <cstddef>
+#include <optional>
 
-#include "aloptional.h"
 #include "api.h"
 
 
 using EaxFxSlotIndexValue = std::size_t;
 
-class EaxFxSlotIndex : public al::optional<EaxFxSlotIndexValue>
-{
+class EaxFxSlotIndex : public std::optional<EaxFxSlotIndexValue> {
 public:
-    using al::optional<EaxFxSlotIndexValue>::optional;
+    using std::optional<EaxFxSlotIndexValue>::optional;
 
     EaxFxSlotIndex& operator=(const EaxFxSlotIndexValue &value) { set(value); return *this; }
     EaxFxSlotIndex& operator=(const GUID &guid) { set(guid); return *this; }