diff --git a/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalConnectivityTest.java b/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalConnectivityTest.java
index 4f122e1..7d26dcd 100644
--- a/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalConnectivityTest.java
+++ b/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalConnectivityTest.java
@@ -72,6 +72,7 @@
             }
         };
 
+        Intent.unbindIdGenerator(idGenerator);
         Intent.bindIdGenerator(idGenerator);
     }
 
diff --git a/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalPathProvisionerTest.java b/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalPathProvisionerTest.java
index 254df53..78a58b5 100644
--- a/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalPathProvisionerTest.java
+++ b/apps/newoptical/src/test/java/org/onosproject/newoptical/OpticalPathProvisionerTest.java
@@ -248,6 +248,7 @@
                 return counter++;
             }
         };
+        Intent.unbindIdGenerator(idGenerator);
         Intent.bindIdGenerator(idGenerator);
     }
 
diff --git a/apps/newoptical/src/test/java/org/onosproject/newoptical/PacketLinkRealizedByOpticalTest.java b/apps/newoptical/src/test/java/org/onosproject/newoptical/PacketLinkRealizedByOpticalTest.java
index 4252edd..610d2bd 100644
--- a/apps/newoptical/src/test/java/org/onosproject/newoptical/PacketLinkRealizedByOpticalTest.java
+++ b/apps/newoptical/src/test/java/org/onosproject/newoptical/PacketLinkRealizedByOpticalTest.java
@@ -54,6 +54,7 @@
             }
         };
 
+        Intent.unbindIdGenerator(idGenerator);
         Intent.bindIdGenerator(idGenerator);
     }