diff --git a/apache/files/save_apache_status.sh b/apache/files/save_apache_status.sh
index 8ca29f15..12f8faed 100644
--- a/apache/files/save_apache_status.sh
+++ b/apache/files/save_apache_status.sh
@@ -4,7 +4,7 @@ set -e
 
 DIR="/var/log/apache-status"
 URL="http://127.0.0.1/server-status"
-TS=`date +%Y%m%d%H%M%S`
+TS=$(date +%Y%m%d%H%M%S)
 FILE="${DIR}/${TS}.html"
 
 if [ ! -d "${DIR}" ]; then