diff --git a/aidl_checkapi.cpp b/aidl_checkapi.cpp
index f07e7e6..de5c9ad 100644
--- a/aidl_checkapi.cpp
+++ b/aidl_checkapi.cpp
@@ -41,10 +41,18 @@
 using std::string;
 using std::vector;
 
+struct DumpForEqualityVisitor : DumpVisitor {
+  DumpForEqualityVisitor(CodeWriter& out) : DumpVisitor(out) {}
+
+  void DumpConstantValue(const AidlTypeSpecifier&, const AidlConstantValue& c) {
+    out << c.Literal();
+  }
+};
+
 static std::string Dump(const AidlDefinedType& type) {
   string code;
   CodeWriterPtr out = CodeWriter::ForString(&code);
-  DumpVisitor visitor(*out);
+  DumpForEqualityVisitor visitor(*out);
   type.DispatchVisit(visitor);
   out->Close();
   return code;