diff --git a/mlir/include/mlir/IR/OpBase.td b/mlir/include/mlir/IR/OpBase.td
--- a/mlir/include/mlir/IR/OpBase.td
+++ b/mlir/include/mlir/IR/OpBase.td
@@ -1432,7 +1432,7 @@
   let constBuilderCall = "$_builder.getStrArrayAttr($0)";
 }
 def TypeArrayAttr : TypedArrayAttrBase<TypeAttr, "type array attribute"> {
-  let constBuilderCall = ?;
+  let constBuilderCall = "$_builder.getTypeArrayAttr($0)";
 }
 
 // Attribute information for an Attribute field within a StructAttr.
diff --git a/mlir/test/lib/Dialect/Test/TestOps.td b/mlir/test/lib/Dialect/Test/TestOps.td
--- a/mlir/test/lib/Dialect/Test/TestOps.td
+++ b/mlir/test/lib/Dialect/Test/TestOps.td
@@ -168,6 +168,9 @@
 def TypeArrayAttrOp : TEST_Op<"type_array_attr"> {
   let arguments = (ins TypeArrayAttr:$attr);
 }
+def TypeArrayAttrWithDefaultOp : TEST_Op<"type_array_attr_with_default"> {
+  let arguments = (ins DefaultValuedAttr<TypeArrayAttr, "{}">:$attr);
+}
 def TypeStringAttrWithTypeOp : TEST_Op<"string_attr_with_type"> {
   let arguments = (ins TypedStrAttr<AnyType>:$attr);
   let assemblyFormat = "$attr attr-dict";