diff --git a/crates/onnx-ir/src/rank_inference.rs b/crates/onnx-ir/src/rank_inference.rs
index 85d25b51bd..5fe2197a58 100644
--- a/crates/onnx-ir/src/rank_inference.rs
+++ b/crates/onnx-ir/src/rank_inference.rs
@@ -87,6 +87,7 @@ pub fn rank_inference(node: &mut Node) {
         NodeType::Sqrt => same_as_input(node),
         NodeType::Sub => same_as_input_broadcast(node),
         NodeType::Sum => same_as_input_broadcast(node),
+        NodeType::Tan => same_as_input(node),
         NodeType::Tanh => same_as_input(node),
         NodeType::TopK => top_k_update_output(node),
         NodeType::Transpose => same_as_input(node),