diff --git a/schema/eval_types.py b/schema/eval_types.py
index 98e4eed..e6ecbec 100644
--- a/schema/eval_types.py
+++ b/schema/eval_types.py
@@ -34,6 +34,7 @@ class Architecture(Enum):
     transformer = 'transformer'
     moe = 'moe'
     ssm = 'ssm'
+    rnn = 'rnn'
     NoneType_None = None