diff --git a/install-stack.sh b/install-stack.sh
index 1349379..426d1bb 100755
--- a/install-stack.sh
+++ b/install-stack.sh
@@ -1760,9 +1760,7 @@ log_dest file /mosquitto/log/mosquitto.log
 log_dest stdout
 
 plugin /usr/lib/mosquitto_dynamic_security.so
-plugin_opts {
-  config_file /mosquitto/data/dynamic-security.json
-}
+plugin_opt_config_file /mosquitto/data/dynamic-security.json
 EOF
 
   push_file 104 /opt/mqtt-broker/docker-compose.yml <<'EOF'