diff --git a/lib/memory.h b/lib/memory.h
index 96b5f6c..40081fe 100644
--- a/lib/memory.h
+++ b/lib/memory.h
@@ -38,6 +38,7 @@
   MTYPE_VTY_HIST,
   MTYPE_VTY_OUT_BUF,
   MTYPE_IF,
+  MTYPE_IF_IRDP,
   MTYPE_CONNECTED,
   MTYPE_AS_SEG,
   MTYPE_AS_STR,