diff --git a/src/add-ons/kernel/network/protocols/unix/UnixDebug.h b/src/add-ons/kernel/network/protocols/unix/UnixDebug.h
index 681272164a..0104937992 100644
--- a/src/add-ons/kernel/network/protocols/unix/UnixDebug.h
+++ b/src/add-ons/kernel/network/protocols/unix/UnixDebug.h
@@ -42,7 +42,7 @@
 #else
 #	define	TRACE(args...)	do {} while (false)
 #	define	REPORT_ERROR(error)
-#	define	RETURN_ERROR(error)
+#	define	RETURN_ERROR(error)	return (error)
 #endif