diff --git a/ryu/ofproto/ofproto_v1_4_parser.py b/ryu/ofproto/ofproto_v1_4_parser.py
index e13dc142..dd00afb0 100644
--- a/ryu/ofproto/ofproto_v1_4_parser.py
+++ b/ryu/ofproto/ofproto_v1_4_parser.py
@@ -1874,7 +1874,7 @@ class OFPMeterMod(MsgBase):
                      OFPMC_ADD
                      OFPMC_MODIFY
                      OFPMC_DELETE
-    flags            One of the following flags.
+    flags            Bitmap of the following flags.
                      OFPMF_KBPS
                      OFPMF_PKTPS
                      OFPMF_BURST