diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c
index 4192812d512c..932687a8e33f 100644
--- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c
+++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.c
@@ -3012,6 +3012,7 @@ zdb_read_block(char *thing, spa_t *spa)
 				free(dup);
 				return;
 			}
+			i += p - &flagstr[i + 1]; /* skip over the number */
 		}
 	}