diff --git a/scripts/addP4DPN.sh b/scripts/addP4DPN.sh
index d2b820b..8f3b00c 100755
--- a/scripts/addP4DPN.sh
+++ b/scripts/addP4DPN.sh
@@ -5,7 +5,7 @@
     curl -i --header "Content-type: application/json" --request POST -u onos:rocks --data '{
         "dpns": [
             {
-                "dpn-id": '$1',
+                "dpn-id": "'$1'",
                 "dpn-name": "site1-anchor1",
                 "dpn-groups": [
                     "foo"