diff --git a/thorlcr/activities/indexwrite/thindexwriteslave.cpp b/thorlcr/activities/indexwrite/thindexwriteslave.cpp
index dedde83ade3..5502804098d 100644
--- a/thorlcr/activities/indexwrite/thindexwriteslave.cpp
+++ b/thorlcr/activities/indexwrite/thindexwriteslave.cpp
@@ -40,7 +40,7 @@ class IndexWriteSlaveActivity : public ProcessSlaveActivity, public ILookAheadSt
     StringAttr logicalFilename;
     Owned<IPartDescriptor> partDesc, tlkDesc;
     IHThorIndexWriteArg *helper;
-    Owned <IKeyBuilder> builder;
+    Owned<IKeyBuilder> builder;
     Owned<IRowStream> myInputStream;
     Owned<IPropertyTree> metadata;
     Linked<IEngineRowAllocator> outRowAllocator;
@@ -237,7 +237,7 @@ class IndexWriteSlaveActivity : public ProcessSlaveActivity, public ILookAheadSt
             {
                 // Clear out builder before merging builder stats into inactive stats
                 // so that gatherActiveStatistics doesn't also merge builder stats.
-                Owned <IKeyBuilder> tmpBuilder;
+                Owned<IKeyBuilder> tmpBuilder;
                 {
                     CriticalBlock b(builderCS);
                     tmpBuilder.setown(builder.getClear());
@@ -253,7 +253,6 @@ class IndexWriteSlaveActivity : public ProcessSlaveActivity, public ILookAheadSt
                         leafMemorySize = tmpBuilder->getLeafMemorySize();
                     }
                     mergeStats(inactiveStats, tmpBuilder, indexWriteActivityStatistics);
-                    tmpBuilder.clear();
                 }
             }
         }