diff --git a/build-index.sh b/build-index.sh
index aa6e60c..02cb1f9 100755
--- a/build-index.sh
+++ b/build-index.sh
@@ -5,7 +5,7 @@ parent=$(dirname "${BASH_SOURCE[0]}")
 cd $parent; cd ../../../
 directory=$(pwd -P)
 
-today=`date "+%Y-%m-%d"`
+today="$(date "+%Y-%m-%d")"
 
 echo -e "Date: $today\n"