diff --git a/sound/cocoa_s.c b/sound/cocoa_s.c
index 833d6ce36a..abc44d1341 100644
--- a/sound/cocoa_s.c
+++ b/sound/cocoa_s.c
@@ -65,7 +65,8 @@ static const char *CocoaSoundStart(const char * const *parm)
 
 	requestedDesc.mBitsPerChannel = 16;
 	requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsSignedInteger;
-#if 1		// Big endian?
+
+#ifdef TTD_BIG_ENDIAN
 	requestedDesc.mFormatFlags |= kLinearPCMFormatFlagIsBigEndian;
 #endif