diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 1e6b14d..f4dacdd 100644
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -88,6 +88,7 @@
 
 segment_manager_t *segment_manager_alloc (void);
 int segment_manager_init (segment_manager_t * sm);
+int segment_manager_init_first (segment_manager_t * sm);
 
 /**
  * Cleanup segment manager