Initialize BoundConnection callback to NULL.
diff --git a/src/lib/core/WeaveFabricState.cpp b/src/lib/core/WeaveFabricState.cpp
index 4ead562..5a5bfaf 100644
--- a/src/lib/core/WeaveFabricState.cpp
+++ b/src/lib/core/WeaveFabricState.cpp
@@ -300,6 +300,8 @@
 
     sessionEndCallbackList = NULL;
 
+    BoundConnectionClosedForSession = NULL;
+
     State = kState_Initialized;
 
     return WEAVE_NO_ERROR;