diff --git a/maintainers/obmc-gerrit b/maintainers/obmc-gerrit
index b666652..c6636e5 100755
--- a/maintainers/obmc-gerrit
+++ b/maintainers/obmc-gerrit
@@ -8,7 +8,8 @@
 # it exists).
 
 from obmc import maintainers
-from typing import cast, Callable, List, Optional, Tuple
+from obmc.reviewlist import ReviewList
+from typing import cast, Callable, List, Optional
 import argparse
 import os
 import sh  # type: ignore
@@ -19,9 +20,8 @@
 
 def get_reviewers(
     root: Optional[str] = None, mname: str = "MAINTAINERS"
-) -> Tuple[List[str], List[str]]:
-    maints: List[str] = list()
-    reviewers: List[str] = list()
+) -> ReviewList:
+
     if not root:
         root = git("rev-parse", "--show-toplevel").strip()
 
@@ -29,7 +29,7 @@
     if os.path.exists(mfile):
         return maintainers.get_reviewers(mfile)
 
-    return (maints, reviewers)
+    return ReviewList()
 
 
 def gerrit_refspec_args(
@@ -48,8 +48,8 @@
 
 
 def decorate_refspec(refspec: str, topic: str) -> str:
-    (maintainers, reviewers) = get_reviewers()
-    gargs = gerrit_refspec_args(maintainers, reviewers, topic)
+    revlist = get_reviewers()
+    gargs = gerrit_refspec_args(revlist.maintainers, revlist.reviewers, topic)
     if not gargs:
         return refspec
     if "%" in refspec:
@@ -69,8 +69,8 @@
 
 
 def do_reviewers(args: argparse.Namespace) -> None:
-    (maintainers, reviewers) = get_reviewers()
-    print(gerrit_refspec_args(maintainers, reviewers))
+    revlist = get_reviewers()
+    print(gerrit_refspec_args(revlist.maintainers, revlist.reviewers))
 
 
 parser = argparse.ArgumentParser()
diff --git a/maintainers/obmc/maintainers.py b/maintainers/obmc/maintainers.py
index f541e36..1aac9ce 100755
--- a/maintainers/obmc/maintainers.py
+++ b/maintainers/obmc/maintainers.py
@@ -10,7 +10,6 @@
 from typing import (
     Dict,
     NamedTuple,
-    Tuple,
     Iterator,
     Sequence,
     Union,
@@ -20,6 +19,7 @@
     IO,
 )
 from pprint import pprint
+from .reviewlist import ReviewList
 
 
 @unique
@@ -185,21 +185,20 @@
     return maintainers
 
 
-def get_reviewers(mfile: str) -> Tuple[List[str], List[str]]:
-    maintainers: List[str] = list()
-    reviewers: List[str] = list()
+def get_reviewers(mfile: str) -> ReviewList:
+    revlist = ReviewList()
 
     with open(mfile) as mstream:
         trash_preamble(mstream)
         block = parse_block(mstream)
         if not block:
-            return (maintainers, reviewers)
+            return revlist
         mlist = cast(List[Identity], block[LineType.MAINTAINER])
-        maintainers.extend(i.email.address for i in mlist)
+        revlist.maintainers.extend(i.email.address for i in mlist)
         if LineType.REVIEWER in block:
             rlist = cast(List[Identity], block[LineType.REVIEWER])
-            reviewers.extend(i.email.address for i in rlist)
-    return (maintainers, reviewers)
+            revlist.reviewers.extend(i.email.address for i in rlist)
+    return revlist
 
 
 def assemble_name(name: str, dst: IO[str]) -> None:
diff --git a/maintainers/obmc/reviewlist.py b/maintainers/obmc/reviewlist.py
new file mode 100644
index 0000000..08df514
--- /dev/null
+++ b/maintainers/obmc/reviewlist.py
@@ -0,0 +1,5 @@
+from typing import List, NamedTuple
+
+class ReviewList(NamedTuple):
+    maintainers: List[str] = list()
+    reviewers: List[str] = list()