diff --git a/lib/route_opaque.h b/lib/route_opaque.h
index 599a0363eb..7c4e9a16e1 100644
--- a/lib/route_opaque.h
+++ b/lib/route_opaque.h
@@ -21,12 +21,15 @@
 #ifndef FRR_ROUTE_OPAQUE_H
 #define FRR_ROUTE_OPAQUE_H
 
+#include "assert.h"
+#include "zclient.h"
+
 #include "bgpd/bgp_aspath.h"
 #include "bgpd/bgp_community.h"
 #include "bgpd/bgp_lcommunity.h"
 
 struct bgp_zebra_opaque {
-	char aspath[ASPATH_STR_DEFAULT_LEN];
+	char aspath[256];
 
 	/* Show at least 10 communities AA:BB */
 	char community[COMMUNITY_SIZE * 20];
@@ -35,4 +38,7 @@ struct bgp_zebra_opaque {
 	char lcommunity[LCOMMUNITY_SIZE * 30];
 };
 
+static_assert(sizeof(struct bgp_zebra_opaque) <= ZAPI_MESSAGE_OPAQUE_LENGTH,
+              "BGP opaque data shouldn't be larger than zebra's buffer");
+
 #endif /* FRR_ROUTE_OPAQUE_H */