diff --git a/run-nginx.sh b/run-nginx.sh
index 9cb8352..7d83028 100755
--- a/run-nginx.sh
+++ b/run-nginx.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
-PARAMS=$(echo "{\"erigonURL\": \"$ERIGON_URL\"}" | jq -aRs .)
+PARAMS="{\"erigonURL\": $(echo $ERIGON_URL | jq -aR .)}"
 echo $PARAMS > /usr/share/nginx/html/config.json
 nginx -g "daemon off;"