diff --git a/docs/man/rabbitmq-service.8.md b/docs/man/rabbitmq-service.8.md
index 33c91144e7..4a9c953ebe 100644
--- a/docs/man/rabbitmq-service.8.md
+++ b/docs/man/rabbitmq-service.8.md
@@ -93,7 +93,11 @@
### RABBITMQ_CONSOLE_LOG {#RABBITMQ_CONSOLE_LOG}
- Set this variable to new or reuse to have the console output from the server redirected to a file named SERVICENAME.debug in the application data directory of the user that installed the service. Under Vista this will be C:\Users\AppData\username\SERVICENAME. Under previous versions of Windows this will be C:\Documents and Settings\username\Application Data\SERVICENAME. If RABBITMQ_CONSOLE_LOG is set to new then a new file will be created each time the service starts. If RABBITMQ_CONSOLE_LOG is set to reuse then the file will be overwritten each time the service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is not set or set to a value other than new or reuse is to discard the server output.
+ Set this variable to new or reuse to have the console output from the server redirected to a file named SERVICENAME.debug in the application data directory of the user that installed the service. Under Vista this will be C:\Users\AppData\username\SERVICENAME. Under previous versions of Windows this will be C:\Documents and Settings\username\Application Data\SERVICENAME. If RABBITMQ_CONSOLE_LOG is set to new then a new file will be created each time the service starts. If RABBITMQ_CONSOLE_LOG is set to reuse then the file will be overwritten each time the service starts. The default behaviour when RABBITMQ_CONSOLE_LOG is not set or set to a value other than new or reuse is to discard the server output.
+
+### RABBITMQ_SERVICE_PRIORITY {#RABBITMQ_SERVICE_PRIORITY}
+
+ Set this variable to low, high or realtime to override default (normal) process priority class of the Erlang emulator.