diff --git a/runtime/xamarin-support.m b/runtime/xamarin-support.m
index 62186ad637ca..295b366d1c04 100644
--- a/runtime/xamarin-support.m
+++ b/runtime/xamarin-support.m
@@ -21,13 +21,22 @@
 xamarin_log (const unsigned short *unicodeMessage)
 {
 	// COOP: no managed memory access: any mode.
+#if TARGET_OS_WATCH && defined (__arm__) // maybe make this configurable somehow?
 	int length = 0;
 	const unsigned short *ptr = unicodeMessage;
 	while (*ptr++)
 		length += sizeof (unsigned short);
 	NSString *msg = [[NSString alloc] initWithBytes: unicodeMessage length: length encoding: NSUTF16LittleEndianStringEncoding];
-	xamarin_printf ([msg UTF8String]);
+	const char *utf8 = [msg UTF8String];
+	int len = strlen (utf8);
+	fwrite (utf8, 1, len, stdout);
+	if (len == 0 || utf8 [len - 1] != '\n')
+		fwrite ("\n", 1, 1, stdout);
+	fflush (stdout);
 	[msg release];
+#else
+	NSLog (@"%S", unicodeMessage);
+#endif
 }
 
 void*