diff --git a/Makefile.inc1 b/Makefile.inc1
index f06321127..399b9654f 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -547,7 +547,8 @@ VERSION=	FreeBSD ${_REVISION}-${_BRANCH:C/-p[0-9]+$//} ${TARGET_ARCH} ${SRCRELDA
 .endif
 
 .if !defined(PKG_VERSION)
-.if ${_BRANCH:MSTABLE*} || ${_BRANCH:MCURRENT*} || ${_BRANCH:MALPHA*}
+.if ${_BRANCH:MSTABLE*} || ${_BRANCH:MCURRENT*} || ${_BRANCH:MALPHA*} || \
+    ${_BRANCH:MBETA*} || ${_BRANCH:MPRERELEASE*}
 TIMENOW=	%Y%m%d%H%M%S
 EXTRA_REVISION=	.s${TIMENOW:gmtime}
 .endif