diff --git a/src/ripple/app/misc/NetworkOPs.cpp b/src/ripple/app/misc/NetworkOPs.cpp
index 209a90abe..c8eee8ddf 100644
--- a/src/ripple/app/misc/NetworkOPs.cpp
+++ b/src/ripple/app/misc/NetworkOPs.cpp
@@ -468,6 +468,7 @@ public:
 
     void onStop ()
     {
+        mAcquiringLedger.reset();
         m_heartbeatTimer.cancel();
         m_clusterTimer.cancel();