diff --git a/db/dbformat.cc b/db/dbformat.cc
index 7b7336abc..be48909a9 100644
--- a/db/dbformat.cc
+++ b/db/dbformat.cc
@@ -44,7 +44,8 @@ std::string InternalKey::DebugString(bool hex) const {
 }
 
 const char* InternalKeyComparator::Name() const {
-  return "leveldb.InternalKeyComparator";
+  return ("leveldb.InternalKeyComparator:" +
+          std::string(user_comparator_->Name())).c_str();
 }
 
 int InternalKeyComparator::Compare(const Slice& akey, const Slice& bkey) const {