diff --git a/priv/repo/migrations/20191026191401_set_not_null_for_oauth_tokens.exs b/priv/repo/migrations/20191026191401_set_not_null_for_oauth_tokens.exs
new file mode 100644
index 000000000..fe67db8cc
--- /dev/null
+++ b/priv/repo/migrations/20191026191401_set_not_null_for_oauth_tokens.exs
@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.SetNotNullForOauthTokens do
+  use Ecto.Migration
+
+  # modify/3 function will require index recreation, so using execute/1 instead
+
+  def up do
+    execute("ALTER TABLE oauth_tokens
+    ALTER COLUMN app_id SET NOT NULL")
+  end
+
+  def down do
+    execute("ALTER TABLE oauth_tokens
+    ALTER COLUMN app_id DROP NOT NULL")
+  end
+end