diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntimeModule.java b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntimeModule.java
index 9f6353e..e773cf8 100755
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntimeModule.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntimeModule.java
@@ -29,12 +29,12 @@
 import net.onrc.onos.core.intent.ShortestPathIntent;
 import net.onrc.onos.core.intent.Intent.IntentState;
 import net.onrc.onos.core.intent.IntentOperation.Operator;
-import net.onrc.onos.ofcontroller.networkgraph.DeviceEvent;
-import net.onrc.onos.ofcontroller.networkgraph.INetworkGraphListener;
-import net.onrc.onos.ofcontroller.networkgraph.INetworkGraphService;
-import net.onrc.onos.ofcontroller.networkgraph.LinkEvent;
-import net.onrc.onos.ofcontroller.networkgraph.PortEvent;
-import net.onrc.onos.ofcontroller.networkgraph.SwitchEvent;
+import net.onrc.onos.core.topology.DeviceEvent;
+import net.onrc.onos.core.topology.INetworkGraphListener;
+import net.onrc.onos.core.topology.INetworkGraphService;
+import net.onrc.onos.core.topology.LinkEvent;
+import net.onrc.onos.core.topology.PortEvent;
+import net.onrc.onos.core.topology.SwitchEvent;
 import net.onrc.onos.registry.controller.IControllerRegistryService;
 
 /**