diff --git a/audio/softsynth/opl/nuked.h b/audio/softsynth/opl/nuked.h
index ce6b34fcfd6d..5718f6f95fb7 100644
--- a/audio/softsynth/opl/nuked.h
+++ b/audio/softsynth/opl/nuked.h
@@ -45,6 +45,10 @@
 namespace OPL {
 namespace NUKED {
 
+typedef uint64 uint64_t;
+typedef uint32 uint_fast32_t;
+#define UINT64_C(value) value##ui64
+
 typedef struct _opl3_slot opl3_slot;
 typedef struct _opl3_channel opl3_channel;
 typedef struct _opl3_chip opl3_chip;