diff --git a/ip/link_gre.c b/ip/link_gre.c
index d403d24a..6254e887 100644
--- a/ip/link_gre.c
+++ b/ip/link_gre.c
@@ -465,7 +465,8 @@ static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 	if (tb[IFLA_GRE_ERSPAN_INDEX]) {
 		__u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
 
-		fprintf(f, "erspan_index %u ", erspan_idx);
+		print_uint(PRINT_ANY,
+			   "erspan_index", "erspan_index %u ", erspan_idx);
 	}
 
 	tnl_print_encap(tb,
diff --git a/ip/link_gre6.c b/ip/link_gre6.c
index a159b542..29ca3d13 100644
--- a/ip/link_gre6.c
+++ b/ip/link_gre6.c
@@ -513,7 +513,9 @@ static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 
 	if (tb[IFLA_GRE_ERSPAN_INDEX]) {
 		__u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
-		fprintf(f, "erspan_index %u ", erspan_idx);
+
+		print_uint(PRINT_ANY,
+			   "erspan_index", "erspan_index %u ", erspan_idx);
 	}
 
 	tnl_print_encap(tb,