diff --git a/src/core.h b/src/core.h
index d718caf..99e8bde 100644
--- a/src/core.h
+++ b/src/core.h
@@ -24,7 +24,7 @@
 
 Status Enable_();
 Status ActivateOnu_(uint32_t intf_id, uint32_t onu_id,
-    const char *vendor_id, const char *vendor_specific);
+    const char *vendor_id, const char *vendor_specific, uint32_t pir);
 Status DeactivateOnu_(uint32_t intf_id, uint32_t onu_id,
     const char *vendor_id, const char *vendor_specific);
 Status DeleteOnu_(uint32_t intf_id, uint32_t onu_id,