diff --git a/r2/r2/lib/db/operators.py b/r2/r2/lib/db/operators.py
index 84137ceda..ccc15c246 100644
--- a/r2/r2/lib/db/operators.py
+++ b/r2/r2/lib/db/operators.py
@@ -50,6 +50,7 @@ class lt(op): pass
 class lte(op): pass
 class gt(op): pass
 class gte(op): pass
+class in_(op): pass
 
 class Slot(object):
     def __init__(self, lval):
@@ -80,6 +81,9 @@ class Slot(object):
     def __ge__(self, other):
         return gte(self, self.name, other)
 
+    def in_(self, other):
+        return in_(self, self.name, other)
+
 class Slots(object):
     def __getattr__(self, attr):
         return Slot(attr)
diff --git a/r2/r2/lib/db/tdb_sql.py b/r2/r2/lib/db/tdb_sql.py
index 491072cc8..4904bb9a8 100644
--- a/r2/r2/lib/db/tdb_sql.py
+++ b/r2/r2/lib/db/tdb_sql.py
@@ -726,6 +726,8 @@ def sa_op(op):
         fn = lambda x,y: x >= y
     elif isinstance(op, operators.lte):
         fn = lambda x,y: x <= y
+    elif isinstance(op, operators.in_):
+        return sa.or_(op.lval.in_(op.rval))
 
     rval = tup(op.rval)