diff --git a/c_gen/c_match.py b/c_gen/c_match.py
index 84bc782..331b2c3 100644
--- a/c_gen/c_match.py
+++ b/c_gen/c_match.py
@@ -274,6 +274,8 @@
     OF_OXM_INDEX_IPV6_ND_TLL    = 33, /* Target link-layer for ND. */
     OF_OXM_INDEX_MPLS_LABEL     = 34, /* MPLS label. */
     OF_OXM_INDEX_MPLS_TC        = 35, /* MPLS TC. */
+    OF_OXM_INDEX_SRC_META_ID = 36,
+    OF_OXM_INDEX_DST_META_ID = 37,
 };
 
 #define OF_OXM_BIT(index) (((uint64_t) 1) << (index))
diff --git a/c_gen/templates/loci_show.h b/c_gen/templates/loci_show.h
index a28a7d4..1a1f80f 100644
--- a/c_gen/templates/loci_show.h
+++ b/c_gen/templates/loci_show.h
@@ -332,6 +332,8 @@
 #define LOCI_SHOW_u32_ipv4_netmask(writer, cookie, val) LOCI_SHOW_ipv4(writer, cookie, val)
 #define LOCI_SHOW_u8_l2_table_enable(writer, cookie, val) LOCI_SHOW_u8(writer, cookie, val)
 #define LOCI_SHOW_u16_l2_table_priority(writer, cookie, val) LOCI_SHOW_u16(writer, cookie, val)
+#define LOCI_SHOW_u8_src_meta_id(writer, cookie, val) LOCI_SHOW_u8(writer, cookie, val)
+#define LOCI_SHOW_u8_dst_meta_id(writer, cookie, val) LOCI_SHOW_u8(writer, cookie, val)