diff --git a/make-linux.mk b/make-linux.mk
index ce8f49515..f32292955 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -7,9 +7,12 @@ DEFS=
 LIBS=
 
 ifeq ($(ZT_AUTO_UPDATE),1)
-	DEFS+=-DZT_AUTO_UPDATE
+	DEFS+=-DZT_AUTO_UPDATE 
 endif
 
+# Uncomment to dump trace and log to stdout
+#DEFS+=-DZT_TRACE -DZT_LOG_STDOUT 
+
 # Uncomment for a release optimized build
 CFLAGS=-Wall -O3 -fvisibility=hidden -fstack-protector -pthread $(INCLUDES) -DNDEBUG $(DEFS)
 STRIP=strip --strip-all