diff --git a/openflow_input/standard-1.2 b/openflow_input/standard-1.2
index a22a259..a804643 100644
--- a/openflow_input/standard-1.2
+++ b/openflow_input/standard-1.2
@@ -424,6 +424,9 @@
     OFPST_EXPERIMENTER = 0xffff,
 };
 
+enum ofp_stats_request_flags(wire_type=uint16_t, bitmask=True) {
+};
+
 enum ofp_stats_reply_flags(wire_type=uint16_t, bitmask=True) {
     OFPSF_REPLY_MORE = 0x1,
 };
@@ -1187,7 +1190,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == ?;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
 };
 
@@ -1197,7 +1200,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == ?;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
 };
 
@@ -1207,7 +1210,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 0;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
 };
 
@@ -1217,7 +1220,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 0;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     of_desc_str_t mfr_desc;
     of_desc_str_t hw_desc;
@@ -1232,7 +1235,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 1;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     uint8_t table_id;
     pad(3);
@@ -1250,7 +1253,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 1;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_flow_stats_entry_t) entries;
 };
@@ -1261,7 +1264,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 2;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     uint8_t table_id;
     pad(3);
@@ -1279,7 +1282,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 2;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     uint64_t packet_count;
     uint64_t byte_count;
@@ -1293,7 +1296,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 3;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
 };
 
@@ -1303,7 +1306,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 3;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_table_stats_entry_t) entries;
 };
@@ -1314,7 +1317,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 4;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     of_port_no_t port_no;
     pad(4);
@@ -1326,7 +1329,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 4;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_port_stats_entry_t) entries;
 };
@@ -1337,7 +1340,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 5;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     of_port_no_t port_no;
     uint32_t queue_id;
@@ -1349,7 +1352,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 5;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_queue_stats_entry_t) entries;
 };
@@ -1360,7 +1363,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 6;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     uint32_t group_id;
     pad(4);
@@ -1372,7 +1375,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 6;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_group_stats_entry_t) entries;
 };
@@ -1383,7 +1386,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 7;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
 };
 
@@ -1393,7 +1396,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 7;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     list(of_group_desc_stats_entry_t) entries;
 };
@@ -1404,7 +1407,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 8;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
 };
 
@@ -1414,7 +1417,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 8;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     uint32_t types;
     uint32_t capabilities;
@@ -1434,7 +1437,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 0xffff;
-    uint16_t flags;
+    enum ofp_stats_request_flags flags;
     pad(4);
     uint32_t experimenter == ?;
     uint32_t subtype;
@@ -1447,7 +1450,7 @@
     uint16_t length;
     uint32_t xid;
     uint16_t stats_type == 0xffff;
-    uint16_t flags;
+    enum ofp_stats_reply_flags flags;
     pad(4);
     uint32_t experimenter == ?;
     uint32_t subtype;