diff --git a/net/rabbitmq/Makefile b/net/rabbitmq/Makefile
index 318c10977cb4..518d644e98ca 100644
--- a/net/rabbitmq/Makefile
+++ b/net/rabbitmq/Makefile
@@ -20,19 +20,29 @@ RUN_DEPENDS=	erlc:${PORTSDIR}/lang/erlang-lite
 
 USE_GMAKE=	yes
 USE_PYTHON=	yes
-MAKE_ENV+=	TARGET_DIR="${PREFIX}/lib/erlang/lib/rabbitmq_server-${PORTVERSION}" SBIN_DIR="${PREFIX}/sbin/" \
-		MAN_DIR="${PREFIX}/man"
-SCRIPTS_DIR=	${WRKSRC}/scripts/
 USE_RC_SUBR=	rabbitmq
-PLIST_SUB=	"VERSION=${PORTVERSION}"
-SUB_FILES=	pkg-install
+
+RABBITMQ_GID=	135
+RABBITMQ_GROUP=	rabbitmq
+RABBITMQ_UID=	135
 RABBITMQ_USER=	rabbitmq
-RABBITMQ_GROUP=	${RABBITMQ_USER}
+
+PLIST_SUB=	"VERSION=${PORTVERSION}"
+
+SUB_FILES=	pkg-install pkg-message
+SUB_LIST=	RABBITMQ_GID=${RABBITMQ_GID} \
+		RABBITMQ_GROUP=${RABBITMQ_GROUP} \
+		RABBITMQ_UID=${RABBITMQ_UID} \
+		RABBITMQ_USER=${RABBITMQ_USER}
 
 MAN1=		rabbitmq-multi.1 rabbitmq-server.1 rabbitmqctl.1
 MAN5=		rabbitmq.conf.5
 MANCOMPRESSED=	yes
 
+SCRIPTS_DIR=	${WRKSRC}/scripts/
+MAKE_ENV+=	TARGET_DIR="${PREFIX}/lib/erlang/lib/rabbitmq_server-${PORTVERSION}" SBIN_DIR="${PREFIX}/sbin/" \
+		MAN_DIR="${PREFIX}/man"
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|/etc/rabbitmq|${PREFIX}/etc/rabbitmq|g ; s|/var/lib|/var/db|g ; s|erl|${LOCALBASE}/bin/erl|g' \
 		${SCRIPTS_DIR}/rabbitmq-multi ${SCRIPTS_DIR}/rabbitmq-server ${SCRIPTS_DIR}/rabbitmqctl
@@ -49,18 +59,6 @@ pre-install:
 # the installed rc.d script, for user convenience.
 post-install:
 	@${SH} ${PKGINSTALL} ${PKGNAME} POST-INSTALL
-	@${ECHO_MSG}
-	@${ECHO_MSG} "###############################################################################"
-	@${ECHO_MSG}
-	@${ECHO_MSG} "Please note:"
-	@${ECHO_MSG} "The \"rabbitmqctl\" command must be run as the \"${RABBITMQ_USER}\" user,"
-	@${ECHO_MSG} "with a real shell, and with the HOME environment variable set to that"
-	@${ECHO_MSG} "user's real home directory."
-	@${ECHO_MSG}
-	@${ECHO_MSG} "sudo users can do something like this:"
-	@${ECHO_MSG} " # sudo -H -u rabbitmq rabbitmqctl ..."
-	@${ECHO_MSG}
-	@${ECHO_MSG} "###############################################################################"
-	@${ECHO_MSG}
+	@${CAT} ${PKGMESSAGE}
 
 .include <bsd.port.mk>
diff --git a/net/rabbitmq/files/pkg-install.in b/net/rabbitmq/files/pkg-install.in
index 6dc6a8397ca5..7066ed2a81e7 100644
--- a/net/rabbitmq/files/pkg-install.in
+++ b/net/rabbitmq/files/pkg-install.in
@@ -1,9 +1,9 @@
 #!/bin/sh
 
-RABBITMQ_USER=rabbitmq
-RABBITMQ_GROUP=${RABBITMQ_USER}
-RABBITMQ_UID=135
-RABBITMQ_GID=${RABBITMQ_UID}
+RABBITMQ_GID=%%RABBITMQ_GID%%
+RABBITMQ_GROUP=%%RABBITMQ_GROUP%%
+RABBITMQ_UID=%%RABBITMQ_UID%%
+RABBITMQ_USER=%%RABBITMQ_USER%%
 
 case $2 in
 PRE-INSTALL)
diff --git a/net/rabbitmq/files/pkg-message.in b/net/rabbitmq/files/pkg-message.in
new file mode 100644
index 000000000000..6678185bc221
--- /dev/null
+++ b/net/rabbitmq/files/pkg-message.in
@@ -0,0 +1,16 @@
+
+##############################################################################
+
+Please note:
+The "rabbitmqctl" command must be run as the %%RABBITMQ_USER%% user,
+with a real shell, and with the ${HOME} environment variable set to that
+user's real home directory.
+
+su users can do something like this:
+ # env HOME=/home/%%RABBITMQ_USER%% su -m %%RABBITMQ_USER%% -c 'rabbitmqctl ...'
+
+sudo users can do something like this:
+ # sudo -H -u %%RABBITMQ_USER%% rabbitmqctl ...
+
+##############################################################################
+