diff --git a/src/java/com/threerings/presents/server/PresentsClient.java b/src/java/com/threerings/presents/server/PresentsClient.java
index f1d6be33a..740d8ffd1 100644
--- a/src/java/com/threerings/presents/server/PresentsClient.java
+++ b/src/java/com/threerings/presents/server/PresentsClient.java
@@ -557,7 +557,7 @@ public class PresentsClient
         if (rec != null) {
             rec.unsubscribe();
         } else {
-            log.warning("Requested to unmap non-existent subscription [oid=" + oid + "].");
+            log.warning("Missing subscription in unmap [client=" + this + ", oid=" + oid + "].");
         }
     }