diff --git a/mlir/include/mlir/Dialect/Complex/IR/ComplexBase.td b/mlir/include/mlir/Dialect/Complex/IR/ComplexBase.td
--- a/mlir/include/mlir/Dialect/Complex/IR/ComplexBase.td
+++ b/mlir/include/mlir/Dialect/Complex/IR/ComplexBase.td
@@ -22,6 +22,7 @@
   let dependentDialects = ["arith::ArithDialect"];
   let hasConstantMaterializer = 1;
   let useDefaultAttributePrinterParser = 1;
+  let usePropertiesForAttributes = 1;
 }
 
 #endif // COMPLEX_BASE