diff --git a/util/status.cc b/util/status.cc
index 616c1a746..857f16dcd 100644
--- a/util/status.cc
+++ b/util/status.cc
@@ -150,6 +150,9 @@ std::string Status::ToString() const {
   }
 
   if (state_ != nullptr) {
+    if (subcode_ != kNone) {
+      result.append(": ");
+    }
     result.append(state_);
   }
   return result;