diff --git a/api/controller/controller_util.py b/api/controller/controller_util.py
index 4a39f93..c86dd85 100644
--- a/api/controller/controller_util.py
+++ b/api/controller/controller_util.py
@@ -11,7 +11,7 @@
 from chromite.lib import constants
 from chromite.lib.parser import package_info
 from chromite.lib.chroot_lib import Chroot
-
+from chromite.lib.sysroot_lib import Sysroot
 
 class Error(Exception):
   """Base error class for the module."""
@@ -58,6 +58,24 @@
 
   return chroot
 
+
+def ParseSysroot(sysroot_message):
+  """Create a sysroot object from the sysroot message.
+
+  Args:
+    sysroot_message (commmon_pb2.Sysroot): The sysroot message.
+
+  Returns:
+    Sysroot: The parsed sysroot object.
+
+  Raises:
+    AssertionError: When the message is not a Sysroot message.
+  """
+  assert isinstance(sysroot_message, sysroot_pb2.Sysroot)
+
+  return Sysroot(sysroot_message.path)
+
+
 def ParseGomaConfig(goma_message, chroot_path):
   """Parse a goma config message."""
   assert isinstance(goma_message, common_pb2.GomaConfig)