diff --git a/ocf/neutron-ha-tool b/ocf/neutron-ha-tool
index 5e40bf2..b4c8d8c 100644
--- a/ocf/neutron-ha-tool
+++ b/ocf/neutron-ha-tool
@@ -248,7 +248,14 @@ neutron_ha_tool_start() {
         INSECURE="--insecure"
     fi
 
-    ${OCF_RESKEY_binary} --replicate-dhcp $INSECURE
+    # Remain backwards-compatible with older neutron-ha-tool.py which
+    # don't support --retry.
+    retry=""
+    if ${OCF_RESKEY_binary} --help | grep -q -- --retry; then
+        retry="--retry"
+    fi
+
+    ${OCF_RESKEY_binary} --replicate-dhcp $retry $INSECURE
 
     rc=$?
     if [ $rc -ne 0 ]; then
@@ -257,7 +264,7 @@ neutron_ha_tool_start() {
         return $OCF_ERR_GENERIC
     fi
 
-    ${OCF_RESKEY_binary} --l3-agent-migrate --now $INSECURE
+    ${OCF_RESKEY_binary} --l3-agent-migrate $retry --now $INSECURE
 
     rc=$?
     if [ $rc -ne 0 ]; then