diff --git a/mlir/test/mlir-tblgen/op-attribute.td b/mlir/test/mlir-tblgen/op-attribute.td
--- a/mlir/test/mlir-tblgen/op-attribute.td
+++ b/mlir/test/mlir-tblgen/op-attribute.td
@@ -392,6 +392,27 @@
 // DEF: odsState.addAttribute(getStrAttrAttrName(odsState.name), odsBuilder.getStringAttr(str_attr));
 // DEF: odsState.addAttribute(getDvStrAttrAttrName(odsState.name), odsBuilder.getStringAttr(dv_str_attr));
 
+
+// Test default dictionary attribute.
+// ---
+
+def DefaultDictAttrOp : NS_Op<"default_dict_attr_op", []> {
+  let arguments = (ins
+    DefaultValuedAttr<DictionaryAttr, "{}">:$empty,
+    DefaultValuedAttr<DictionaryAttr, "getDefaultDictAttrs($_builder)">:$non_empty
+  );
+}
+
+// DEF-LABEL: DefaultDictAttrOp definitions
+// DEF: if (!attributes.get(attrNames[0]))
+// DEF:   attributes.append(attrNames[0], odsBuilder.getDictionaryAttr({}));
+// DEF: if (!attributes.get(attrNames[1]))
+// DEF:   attributes.append(attrNames[1], odsBuilder.getDictionaryAttr(getDefaultDictAttrs(odsBuilder)));
+
+// DECL-LABEL: DefaultDictAttrOp declarations
+// DECL: build(::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &odsState, ::mlir::DictionaryAttr empty, ::mlir::DictionaryAttr non_empty)
+
+
 // Test derived type attr.
 // ---
 def DerivedTypeAttrOp : NS_Op<"derived_type_attr_op", []> {
diff --git a/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp b/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
--- a/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
+++ b/mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
@@ -1725,8 +1725,10 @@
     body << "if (!attributes.get(attrNames[" << index << "])) {\n";
     FmtContext fctx;
     fctx.withBuilder(odsBuilder);
-    std::string defaultValue = std::string(
-        tgfmt(attr.getConstBuilderTemplate(), &fctx, attr.getDefaultValue()));
+
+    std::string defaultValue =
+        std::string(tgfmt(attr.getConstBuilderTemplate(), &fctx,
+                          tgfmt(attr.getDefaultValue(), &fctx)));
     body.indent() << formatv("attributes.append(attrNames[{0}], {1});\n", index,
                              defaultValue);
     body.unindent() << "}\n";