diff --git a/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java b/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
index 3d76ef6..1db37e5 100644
--- a/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
+++ b/impl/src/main/java/org/opencord/olt/impl/OsgiPropertyConstants.java
@@ -59,4 +59,7 @@
 
     public static final String PROVISION_DELAY = "provisionDelay";
     public static final int PROVISION_DELAY_DEFAULT = 100;
+
+    public static final String REQUIRED_DRIVERS_PROPERTY_DELAY = "requiredDriversPropertyDelay";
+    public static final int REQUIRED_DRIVERS_PROPERTY_DELAY_DEFAULT = 5;
 }