diff --git a/platform/util/src/com/intellij/util/indexing/impl/MapReduceIndex.java b/platform/util/src/com/intellij/util/indexing/impl/MapReduceIndex.java
index 5e0a3b2ed4c4..8e41f2b27dd3 100644
--- a/platform/util/src/com/intellij/util/indexing/impl/MapReduceIndex.java
+++ b/platform/util/src/com/intellij/util/indexing/impl/MapReduceIndex.java
@@ -255,7 +255,7 @@ public abstract class MapReduceIndex<Key,Value, Input> implements InvertedIndex<
         updateWithMap(inputId, updateData);
       }
       catch (StorageException | ProcessCanceledException ex) {
-        LOG.info("An exception during updateWithMap(). Index will be rebuilt.", ex);
+        LOG.info("An exception during updateWithMap(). Index " + myIndexId.getName() + " will be rebuilt.", ex);
         requestRebuild(ex);
         return Boolean.FALSE;
       }