diff --git a/datasette/app.py b/datasette/app.py
index f732f95c..001cf4c3 100644
--- a/datasette/app.py
+++ b/datasette/app.py
@@ -1628,9 +1628,7 @@ class Datasette:
         if not table_exists:
             is_view = await db.view_exists(table_name)
         if not (table_exists or is_view):
-            raise TableNotFound(
-                "Table not found: {}".format(table_name), db.name, table_name
-            )
+            raise TableNotFound(db.name, table_name)
         return ResolvedTable(db, table_name, is_view)
 
     async def resolve_row(self, request):
diff --git a/datasette/utils/asgi.py b/datasette/utils/asgi.py
index b3f00bb3..6bdba714 100644
--- a/datasette/utils/asgi.py
+++ b/datasette/utils/asgi.py
@@ -29,8 +29,8 @@ class DatabaseNotFound(NotFound):
 
 
 class TableNotFound(NotFound):
-    def __init__(self, message, database_name, table):
-        super().__init__(message)
+    def __init__(self, database_name, table):
+        super().__init__("Table not found")
         self.database_name = database_name
         self.table = table
 
diff --git a/tests/test_api_write.py b/tests/test_api_write.py
index 2cd87858..94eb902b 100644
--- a/tests/test_api_write.py
+++ b/tests/test_api_write.py
@@ -140,7 +140,7 @@ async def test_insert_rows(ds_write, return_rows):
             {},
             None,
             404,
-            ["Table not found: docs2"],
+            ["Table not found"],
         ),
         (
             "/data/docs/-/insert",
@@ -274,7 +274,7 @@ async def test_insert_rows(ds_write, return_rows):
             {"rows": [{"title": "Test"}]},
             None,
             404,
-            ["Table not found: badtable"],
+            ["Table not found"],
         ),
         # missing primary key
         (
@@ -598,7 +598,7 @@ async def test_delete_row_errors(ds_write, scenario):
     assert (
         response.json()["errors"] == ["Permission denied"]
         if scenario == "no_token"
-        else ["Table not found: bad_table"]
+        else ["Table not found"]
     )
     assert len((await ds_write.client.get("/data/docs.json?_shape=array")).json()) == 1
 
@@ -703,7 +703,7 @@ async def test_update_row_check_permission(ds_write, scenario):
     assert (
         response.json()["errors"] == ["Permission denied"]
         if scenario == "no_token"
-        else ["Table not found: bad_table"]
+        else ["Table not found"]
     )
 
 
@@ -830,7 +830,7 @@ async def test_drop_table(ds_write, scenario):
         assert response.json()["ok"] is False
         expected_error = "Permission denied"
         if scenario == "bad_table":
-            expected_error = "Table not found: bad_table"
+            expected_error = "Table not found"
         elif scenario == "immutable":
             expected_error = "Database is immutable"
         assert response.json()["errors"] == [expected_error]
diff --git a/tests/test_table_api.py b/tests/test_table_api.py
index 58930950..8360157d 100644
--- a/tests/test_table_api.py
+++ b/tests/test_table_api.py
@@ -36,7 +36,7 @@ async def test_table_json(ds_client):
 async def test_table_not_exists_json(ds_client):
     assert (await ds_client.get("/fixtures/blah.json")).json() == {
         "ok": False,
-        "error": "Table not found: blah",
+        "error": "Table not found",
         "status": 404,
         "title": None,
     }
diff --git a/tests/test_table_html.py b/tests/test_table_html.py
index fcf914a6..1a9ed540 100644
--- a/tests/test_table_html.py
+++ b/tests/test_table_html.py
@@ -535,7 +535,7 @@ async def test_csv_json_export_links_include_labels_if_foreign_keys(ds_client):
 
 @pytest.mark.asyncio
 async def test_table_not_exists(ds_client):
-    assert "Table not found: blah" in (await ds_client.get("/fixtures/blah")).text
+    assert "Table not found" in (await ds_client.get("/fixtures/blah")).text
 
 
 @pytest.mark.asyncio