diff --git a/channels/chan_skinny.c b/channels/chan_skinny.c
index f39df49ec6..2b058dd464 100755
--- a/channels/chan_skinny.c
+++ b/channels/chan_skinny.c
@@ -82,7 +82,7 @@ typedef unsigned int   UINT32;
 #define htolel(x) (x)
 #define htoles(x) (x)
 #else
-#ifdef SOLARIS
+#if defined(SOLARIS) || defined(__Darwin__)
 #define __bswap_16(x) \
      ((((x) & 0xff00) >> 8) | \
       (((x) & 0x00ff) << 8))