diff --git a/solr/solrj/src/java/org/apache/solr/common/cloud/HashBasedRouter.java b/solr/solrj/src/java/org/apache/solr/common/cloud/HashBasedRouter.java
index 07f2d35cf2d..4ac4e51a87c 100644
--- a/solr/solrj/src/java/org/apache/solr/common/cloud/HashBasedRouter.java
+++ b/solr/solrj/src/java/org/apache/solr/common/cloud/HashBasedRouter.java
@@ -64,7 +64,7 @@ public abstract class HashBasedRouter extends DocRouter {
       Range range = slice.getRange();
       if (range != null && range.includes(hash)) return slice;
     }
-    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "No active slice servicing hash code " + Integer.toHexString(hash) + " in " + collection);
+    throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "No active slice servicing hash code " + Integer.toHexString(hash) + " in " + collection.getName());
   }