diff --git a/tools/test/bin/onos-install b/tools/test/bin/onos-install
index 95303d2..d594105 100755
--- a/tools/test/bin/onos-install
+++ b/tools/test/bin/onos-install
@@ -37,4 +37,4 @@
 onos-config $node
 
 # Ignite the ONOS service.
-onos-service $node start†
\ No newline at end of file
+onos-service $node start
diff --git a/tools/test/cells/.reset b/tools/test/cells/.reset
new file mode 100644
index 0000000..c025225
--- /dev/null
+++ b/tools/test/cells/.reset
@@ -0,0 +1 @@
+unset OC1 OC2 OC3 OC4 OC5 OC6 OC7 OC8 OC9 OCN ONOS_NIC
diff --git a/tools/test/cells/local b/tools/test/cells/local
index 3d71a1e..b04a5e3 100644
--- a/tools/test/cells/local
+++ b/tools/test/cells/local
@@ -1,4 +1,5 @@
 # Default virtual box ONOS instances 1,2 & ONOS mininet box
+. $ONOS_ROOT/tools/test/cells/.reset
 
 export OC1="192.168.56.101"
 export OC2="192.168.56.102"
diff --git a/tools/test/cells/prox b/tools/test/cells/prox
index 4539117..3fa1279 100644
--- a/tools/test/cells/prox
+++ b/tools/test/cells/prox
@@ -1,4 +1,5 @@
 # ProxMox-based cell of ONOS instances 1,2 & ONOS mininet box
+. $ONOS_ROOT/tools/test/cells/.reset
 
 export ONOS_NIC="10.1.9.*"