pbuilder --build --no-clean-after

I want pbuilder on debian to create a chrooted env, install build dependencies, build a package and then launch a shell and let me analyze the build directory. For example, if I run: sudo pbuilder --build snacc_1.3.1-5.dsc there's a file: /var/cache/pbuilder/build/20352/tmp/buildd/snacc-1.3.1/compiler/back-ends/c-gen/util.c It gets deleted after. mock for rhel has the option --no-clean-after. Can't find a similar option in pbuild. There's --preserve-buildplace, but it does something else.