diff --git a/thorlcr/activities/nsplitter/thnsplitterslave.cpp b/thorlcr/activities/nsplitter/thnsplitterslave.cpp
index d1d8f2e2e8e..a9ce4376e12 100644
--- a/thorlcr/activities/nsplitter/thnsplitterslave.cpp
+++ b/thorlcr/activities/nsplitter/thnsplitterslave.cpp
@@ -217,7 +217,10 @@ class NSplitterSlaveActivity : public CSlaveActivity, implements ISharedSmartBuf
                 assertex(((unsigned)-1) != connectedOutputCount);
                 activeOutputCount = connectedOutputCount;
 
-                PARENT::start();
+                {
+                    ActivityTimer t(slaveTimerStats, queryTimeActivities());
+                    PARENT::start();
+                }
                 initMetaInfo(cachedMetaInfo);
                 cachedMetaInfo.suppressLookAhead = spill; // only suppress downstream lookaheads if this is a spilling splitter