diff --git a/release/Makefile b/release/Makefile
index 2e31ae937e94..2fdaba9cc91c 100644
--- a/release/Makefile
+++ b/release/Makefile
@@ -154,8 +154,8 @@ system: packagesystem
 # Install system
 	mkdir -p release
 	cd ${WORLDDIR} && ${IMAKE} installkernel installworld distribution \
-		DESTDIR=${.OBJDIR}/release WITHOUT_RESCUE=1 WITHOUT_KERNEL_SYMBOLS=1 \
-		WITHOUT_PROFILE=1 WITHOUT_SENDMAIL=1 MK_TESTS=no WITHOUT_LIB32=1
+		DESTDIR=${.OBJDIR}/release MK_RESCUE=no MK_KERNEL_SYMBOLS=no \
+		MK_PROFILE=no MK_SENDMAIL=no MK_TESTS=no MK_LIB32=no
 # Copy distfiles
 	mkdir -p release/usr/freebsd-dist
 	cp *.txz MANIFEST release/usr/freebsd-dist
@@ -175,12 +175,12 @@ bootonly: packagesystem
 # Install system
 	mkdir -p bootonly
 	cd ${WORLDDIR} && ${IMAKE} installkernel installworld distribution \
-	    DESTDIR=${.OBJDIR}/bootonly WITHOUT_AMD=1 WITHOUT_AT=1 \
-	    WITHOUT_GAMES=1 WITHOUT_GROFF=1 \
-	    WITHOUT_INSTALLLIB=1 WITHOUT_LIB32=1 WITHOUT_MAIL=1 \
-	    WITHOUT_NCP=1 WITHOUT_TOOLCHAIN=1 WITHOUT_PROFILE=1 \
-	    WITHOUT_INSTALLIB=1 WITHOUT_RESCUE=1 WITHOUT_DICT=1 \
-	    WITHOUT_KERNEL_SYMBOLS=1 MK_TESTS=no
+	    DESTDIR=${.OBJDIR}/bootonly MK_AMD=no MK_AT=no \
+	    MK_GAMES=no MK_GROFF=no \
+	    MK_INSTALLLIB=no MK_LIB32=no MK_MAIL=no \
+	    MK_NCP=no MK_TOOLCHAIN=no MK_PROFILE=no \
+	    MK_INSTALLIB=no MK_RESCUE=no MK_DICT=no \
+	    MK_KERNEL_SYMBOLS=no MK_TESTS=no
 # Copy manifest only (no distfiles) to get checksums
 	mkdir -p bootonly/usr/freebsd-dist
 	cp MANIFEST bootonly/usr/freebsd-dist
@@ -199,7 +199,7 @@ dvd:
 # Install system
 	mkdir -p ${.TARGET}
 	cd ${WORLDDIR} && ${IMAKE} installkernel installworld distribution \
-		DESTDIR=${.OBJDIR}/${.TARGET} WITHOUT_RESCUE=1 WITHOUT_KERNEL_SYMBOLS=1 \
+		DESTDIR=${.OBJDIR}/${.TARGET} MK_RESCUE=no MK_KERNEL_SYMBOLS=no \
 		MK_TESTS=no
 # Copy distfiles
 	mkdir -p ${.TARGET}/usr/freebsd-dist