diff --git a/docs/linux-service.md b/docs/linux-service.md
index cd46fbf1..3c63897f 100644
--- a/docs/linux-service.md
+++ b/docs/linux-service.md
@@ -104,7 +104,7 @@ fi
 # Delete log file if larger than 5MB
 find $LOGS -type f -name "upgrade.log" -size +5M -delete
 
-exec 1> $LOGS/upgrade.log 2>&1
+exec 1>> $LOGS/upgrade.log 2>&1
 
 cd $DIR