diff --git a/vppapigen/node.h b/vppapigen/node.h
index 1f5a153..fc33150 100644
--- a/vppapigen/node.h
+++ b/vppapigen/node.h
@@ -73,12 +73,13 @@
     struct node_ *peer;
     struct node_ *deeper;
     int flags;
-    void *data[2];
+    void *data[3];
 } node_t;
 
 /* To shut up gcc-4.2.x warnings */
 #define CDATA0 ((char *)(this->data[0]))
 #define IDATA1 ((int)(uword)(this->data[1]))
+#define CDATA2 ((char *)(this->data[2]))
 
 #define NODE_FLAG_MANUAL_PRINT (1<<0)
 #define NODE_FLAG_MANUAL_ENDIAN (1<<1)