diff --git a/schemainspect/pg/obj.py b/schemainspect/pg/obj.py
index bc8639a..bd3b797 100644
--- a/schemainspect/pg/obj.py
+++ b/schemainspect/pg/obj.py
@@ -1667,11 +1667,14 @@ def filter_schema(self, schema=None, exclude_schema=None):
         if schema and exclude_schema:
             raise ValueError("Can only have schema or exclude schema, not both")
 
+        if isinstance(exclude_schema, str):
+            exclude_schema = exclude_schema.split(",")
+
         def equal_to_schema(x):
             return x.schema == schema
 
         def not_equal_to_exclude_schema(x):
-            return x.schema != exclude_schema
+            return x.schema not in exclude_schema
 
         if schema:
             comparator = equal_to_schema
diff --git a/tests/test_excludeschema.py b/tests/test_excludeschema.py
index dca6497..db9c36c 100644
--- a/tests/test_excludeschema.py
+++ b/tests/test_excludeschema.py
@@ -5,14 +5,14 @@
 from .test_all import setup_pg_schema
 
 
-def asserts_pg_excludedschema(i, schema_names, excludedschema_name):
+def asserts_pg_excludedschema(i, schema_names, excludedschemas):
     schemas = set()
     for (
         prop
     ) in "schemas relations tables views functions selectables sequences enums constraints".split():
         att = getattr(i, prop)
         for k, v in att.items():
-            assert v.schema != excludedschema_name
+            assert v.schema not in excludedschemas
             schemas.add(v.schema)
     assert schemas == set(schema_names)
 
@@ -24,9 +24,17 @@ def test_postgres_inspect_excludeschema(db):
         s.execute("create schema forthschema;")
         i = get_inspector(s, exclude_schema="otherschema")
         asserts_pg_excludedschema(
-            i, ["public", "forthschema", "thirdschema"], "otherschema"
+            i, ["public", "forthschema", "thirdschema"], ["otherschema"]
         )
         i = get_inspector(s, exclude_schema="forthschema")
         asserts_pg_excludedschema(
-            i, ["public", "otherschema", "thirdschema"], "forthschema"
+            i, ["public", "otherschema", "thirdschema"], ["forthschema"]
+        )
+        i = get_inspector(s, exclude_schema="forthschema,otherschema")
+        asserts_pg_excludedschema(
+            i, ["public", "thirdschema"], ["forthschema", "otherschema"]
+        )
+        i = get_inspector(s, exclude_schema=["forthschema", "otherschema"])
+        asserts_pg_excludedschema(
+            i, ["public", "thirdschema"], ["forthschema", "otherschema"]
         )