diff --git a/miniaudio.h b/miniaudio.h
index 3c850d3b..4742a5ca 100644
--- a/miniaudio.h
+++ b/miniaudio.h
@@ -4058,6 +4058,9 @@ typedef ma_uint16 wchar_t;
     #if defined(__HAIKU__)
         #define MA_HAIKU
     #endif
+    #if defined(__sun) || defined(__sun__)
+        #define MA_SUN
+    #endif
 #endif
 
 #if !defined(MA_FALLTHROUGH) && defined(__cplusplus) && __cplusplus >= 201703L