diff --git a/lib/neutron_plugins/linuxbridge_agent b/lib/neutron_plugins/linuxbridge_agent
index 82b5fc903d..2638dd3725 100644
--- a/lib/neutron_plugins/linuxbridge_agent
+++ b/lib/neutron_plugins/linuxbridge_agent
@@ -47,6 +47,7 @@ function neutron_plugin_configure_plugin_agent {
         iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.firewall.NoopFirewallDriver
     fi
     AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-linuxbridge-agent"
+    iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
     # Define extra "AGENT" configuration options when q-agt is configured by defining
     # the array ``Q_AGENT_EXTRA_AGENT_OPTS``.
     # For Example: ``Q_AGENT_EXTRA_AGENT_OPTS=(foo=true bar=2)``
diff --git a/lib/neutron_plugins/ml2 b/lib/neutron_plugins/ml2
index 42dd57f3d2..44b947f380 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -6,13 +6,13 @@ ML2_XTRACE=$(set +o | grep xtrace)
 set +o xtrace
 
 # Enable this to simply and quickly enable tunneling with ML2.
-# Select either 'gre', 'vxlan', or '(gre vxlan)'
+# Select either 'gre', 'vxlan', or 'gre,vxlan'
 Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"vxlan"}
 # This has to be set here since the agent will set this in the config file
 if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "gre" || "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
-    Q_AGENT_EXTRA_AGENT_OPTS+=(tunnel_types=$Q_ML2_TENANT_NETWORK_TYPE)
+    Q_TUNNEL_TYPES=$Q_ML2_TENANT_NETWORK_TYPE
 elif [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
-    Q_AGENT_EXTRA_AGENT_OPTS+=(tunnel_types=gre)
+    Q_TUNNEL_TYPES=gre
 fi
 
 # Default openvswitch L2 agent
diff --git a/lib/neutron_plugins/ofagent_agent b/lib/neutron_plugins/ofagent_agent
index 66283ad67c..b4c2ada873 100644
--- a/lib/neutron_plugins/ofagent_agent
+++ b/lib/neutron_plugins/ofagent_agent
@@ -71,6 +71,7 @@ function neutron_plugin_configure_plugin_agent {
     fi
     AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-ofagent-agent"
 
+    iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
     # Define extra "AGENT" configuration options when q-agt is configured by defining
     # defining the array ``Q_AGENT_EXTRA_AGENT_OPTS``.
     # For Example: ``Q_AGENT_EXTRA_AGENT_OPTS=(foo=true bar=2)``
diff --git a/lib/neutron_plugins/openvswitch_agent b/lib/neutron_plugins/openvswitch_agent
index 5adb0c5e43..3fc37deb90 100644
--- a/lib/neutron_plugins/openvswitch_agent
+++ b/lib/neutron_plugins/openvswitch_agent
@@ -102,6 +102,7 @@ function neutron_plugin_configure_plugin_agent {
         # Set root wrap
         iniset "/$Q_PLUGIN_CONF_FILE.domU" agent root_helper "$Q_RR_COMMAND"
     fi
+    iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
     # Define extra "AGENT" configuration options when q-agt is configured by defining
     # defining the array ``Q_AGENT_EXTRA_AGENT_OPTS``.
     # For Example: ``Q_AGENT_EXTRA_AGENT_OPTS=(foo=true bar=2)``