diff --git a/home.admin/config.scripts/blitz.conf.sh b/home.admin/config.scripts/blitz.conf.sh
index e10b2ca17..e9397cfea 100755
--- a/home.admin/config.scripts/blitz.conf.sh
+++ b/home.admin/config.scripts/blitz.conf.sh
@@ -16,7 +16,7 @@ if [ "$1" = "set" ]; then
 
   # get parameters
   keystr=$2
-  valuestr=echo $3 | sed 's/\//\\\//g'
+  valuestr=$(echo "${3}" | sed 's/\//\\\//g')
   configfileAlternative=$4
 
   # check that key & value are given