diff --git a/web/assets/main.js b/web/assets/main.js
index e092efd..b324a43 100644
--- a/web/assets/main.js
+++ b/web/assets/main.js
@@ -3,6 +3,7 @@ const $ = document.querySelector.bind(document);
 const $$ = document.querySelectorAll.bind(document);
 
 const initialLines = 10;
+const DEFAULT_CORPUS_ID = "c3d8e9";
 
 // I am truly sorry
 function invoker(methodName) {
@@ -203,7 +204,7 @@ class PoemLine extends HTMLDivElement {
 
   regen() {
     let params = new URLSearchParams(document.location.search);
-    const corpusid = params.get("corpus");
+    const corpusid = params.get("corpus") || DEFAULT_CORPUS_ID;
     let p = "/line";
     if (corpusid != "" && corpusid != null) {
       p = `/line?corpus=${corpusid}`;
diff --git a/web/web.go b/web/web.go
index 805dec1..52d6af3 100644
--- a/web/web.go
+++ b/web/web.go
@@ -7,6 +7,7 @@ import (
 	"html/template"
 	"log"
 	"math/big"
+	mrand "math/rand"
 	"net/http"
 	"strings"
 
@@ -153,7 +154,11 @@ func Serve(opts ServeOpts) error {
 		}
 		defer conn.Release()
 
-		corpusid := c.DefaultQuery("corpus", "c3d8e9")
+		corpusid := c.DefaultQuery("corpus", "")
+		if corpusid == "" {
+			ix := mrand.Intn(len(corpora))
+			corpusid = corpora[ix].ID
+		}
 
 		var cpus corpus