diff --git a/CHANGES.txt b/CHANGES.txt
index d2015f48a06..ed17345139e 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -68,5 +68,6 @@ Other Changes
     http://svn.apache.org/viewvc/lucene/java/trunk/CHANGES.txt?view=markup&pathrev=416224
  2. Modified admin styles to improve display in Internet Explorer (Greg Ludington via billa, SOLR-6)
  3. Upgrade to Lucene 2.0 nightly build 2006-07-15, lucene SVN revision 422302,
+ 4. Included unique key field name/value (if available) in log message of add (billa, SOLR-18)
 
 2006/01/17 Solr open sourced, moves to Apache Incubator
diff --git a/src/java/org/apache/solr/core/SolrCore.java b/src/java/org/apache/solr/core/SolrCore.java
index ba49d2fa1b1..30720ab874c 100644
--- a/src/java/org/apache/solr/core/SolrCore.java
+++ b/src/java/org/apache/solr/core/SolrCore.java
@@ -28,6 +28,7 @@ import org.apache.solr.request.SolrQueryRequest;
 import org.apache.solr.request.SolrQueryResponse;
 import org.apache.solr.request.XMLResponseWriter;
 import org.apache.solr.schema.IndexSchema;
+import org.apache.solr.schema.SchemaField;
 import org.apache.solr.search.SolrIndexSearcher;
 import org.apache.solr.update.*;
 import org.apache.solr.util.DOMUtil;
@@ -693,7 +694,14 @@ public final class SolrCore {
             cmd.doc = builder.getDoc();
             log.finest("adding doc...");
             updateHandler.addDoc(cmd);
-	          log.info("add "+status+" "+(System.currentTimeMillis()-startTime));
+            SchemaField uniqueKeyField = schema.getUniqueKeyField();
+            StringBuilder addMsg = new StringBuilder("add ");
+            if (uniqueKeyField!=null) addMsg.append("(")
+                                .append(uniqueKeyField.getName())
+                                .append("=")
+                                .append(schema.printableUniqueKey(cmd.doc))
+                                .append(") ");
+            log.info(addMsg.toString()+status+" "+(System.currentTimeMillis()-startTime));
             writer.write("<result status=\"" + status + "\"></result>");
           } catch (SolrException e) {
             log(e);