diff --git a/bootstrapvz/base/bootstrapinfo.py b/bootstrapvz/base/bootstrapinfo.py
index 30a54f3..e2cb6e9 100644
--- a/bootstrapvz/base/bootstrapinfo.py
+++ b/bootstrapvz/base/bootstrapinfo.py
@@ -55,6 +55,10 @@ class BootstrapInformation(object):
 		# that hint at how a command may be made available.
 		self.host_dependencies = {}
 
+		# Path to optional bootstrapping script for modifying the behaviour of debootstrap
+		# (will be used instead of e.g. /usr/share/debootstrap/scripts/jessie)
+		self.bootstrap_script = None
+
 		# Lists of startup scripts that should be installed and disabled
 		self.initd = {'install': {}, 'disable': []}
 
diff --git a/bootstrapvz/common/tasks/bootstrap.py b/bootstrapvz/common/tasks/bootstrap.py
index 9f8f1f6..75d882b 100644
--- a/bootstrapvz/common/tasks/bootstrap.py
+++ b/bootstrapvz/common/tasks/bootstrap.py
@@ -75,6 +75,10 @@ class Bootstrap(Task):
 				log.debug('Found matching tarball, skipping download')
 			options.extend(['--unpack-tarball=' + tarball])
 
+		if info.bootstrap_script is not None:
+			# Optional bootstrapping script to modify the bootstrapping process
+			arguments.append(info.bootstrap_script)
+
 		from ..tools import log_check_call
 		log_check_call(executable + options + arguments)