diff --git a/link_linux.go b/link_linux.go
index 7ab769d..64ce3e8 100644
--- a/link_linux.go
+++ b/link_linux.go
@@ -2280,9 +2280,7 @@ func parseGretapData(link Link, data []syscall.NetlinkRouteAttr) {
 		case nl.IFLA_GRE_ENCAP_FLAGS:
 			gre.EncapFlags = native.Uint16(datum.Value[0:2])
 		case nl.IFLA_GRE_COLLECT_METADATA:
-			if len(datum.Value) > 0 {
-				gre.FlowBased = int8(datum.Value[0]) != 0
-			}
+			gre.FlowBased = true
 		}
 	}
 }