diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
index fd1a8b1..4c2bdf8 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
@@ -34,6 +34,7 @@
 import net.onrc.onos.ofcontroller.util.FlowPath;
 import net.onrc.onos.ofcontroller.util.FlowPathUserState;
 import net.onrc.onos.ofcontroller.util.Pair;
+import net.onrc.onos.ofcontroller.util.PerformanceMonitor;
 import net.onrc.onos.ofcontroller.util.Port;
 import net.onrc.onos.ofcontroller.util.serializers.KryoFactory;
 import net.onrc.onos.registry.controller.IControllerRegistryService;