diff --git a/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensorType.h b/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensorType.h
index 9d22f5220e96..888eb7f325ac 100644
--- a/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensorType.h
+++ b/mlir/include/mlir/Dialect/SparseTensor/IR/SparseTensorType.h
@@ -61,6 +61,7 @@ public:
   // Copy-assignment would be implicitly deleted (because our fields
   // are const), so we explicitly delete it for clarity.
   SparseTensorType &operator=(const SparseTensorType &) = delete;
+  SparseTensorType(const SparseTensorType &) = default;
 
   /// Constructs a new `SparseTensorType` with the same dimension-shape
   /// and element type, but with the encoding replaced by the given encoding.