diff --git a/sys/apps/openrc/ympbuild b/sys/apps/openrc/ympbuild
index 9f4982b3..f189f776 100644
--- a/sys/apps/openrc/ympbuild
+++ b/sys/apps/openrc/ympbuild
@@ -33,7 +33,7 @@ cd $name-$version
 
 prepare(){
     # hidepid=2 by default
-    sed -i "s/ proc \/proc/,hidepid=2&/g" sh/init.sh.Linux.in 
+    sed -i "s/ proc \/proc/,hidepid=2,gid=31&/g" sh/init.sh.Linux.in 
 }
 
 setup(){
@@ -64,6 +64,7 @@ package(){
     mkdir -p ${DESTDIR}/etc/group.d
     mkdir -p ${DESTDIR}/etc/passwd.d
     echo "uucp:x:14:" > ${DESTDIR}/etc/group.d/uucp
+    echo "proc:x:31:" > ${DESTDIR}/etc/group.d/proc
     echo "uucp:x:10:14:uucp:/var/spool/uucp:/bin/false" > ${DESTDIR}/etc/passwd.d/uucp
     # move /share to /usr/share
     mkdir -p ${DESTDIR}/usr ${DESTDIR}/sbin
diff --git a/sys/kernel/initramfs-tools/ympbuild b/sys/kernel/initramfs-tools/ympbuild
index e8d27fd5..3dbf8709 100644
--- a/sys/kernel/initramfs-tools/ympbuild
+++ b/sys/kernel/initramfs-tools/ympbuild
@@ -33,7 +33,7 @@ prepare(){
     patch -Np1 -i ../non-debian.patch
     patch -Np1 -i ../no-dracut.patch
     # hidepid=2 default
-    sed -i "s/ proc \/proc/,hidepid=2&/g" init
+    sed -i "s/ proc \/proc/,hidepid=2,gid=31&/g" init
     # replace linux-version command
     sed -i "s/linux-version/false/g" hook-functions
     sed -i "s/linux-version list/ls \/lib\/modules\//g" update-initramfs