diff --git a/static/js/audiobook-segmentation.js b/static/js/audiobook-segmentation.js
index 3a79314..0ff334d 100644
--- a/static/js/audiobook-segmentation.js
+++ b/static/js/audiobook-segmentation.js
@@ -13,12 +13,14 @@ function _abImplausibleDialoguePiece(text) {
 
 function audiobookSplitByQuotes(text) {
   const spans = [];
-  for (let i = 0; i < text.length; i++) {
+  let next = 0;
+  while (next < text.length) {
+    const i = next++;
     const open = text[i], close = AB_QUOTE_PAIRS[open];
     if (!close) continue;
     const minStart = spans.length ? spans[spans.length - 1].end : 0;
     const orphan = _abOrphanClosingQuoteSpan(text, i, minStart);
-    if (orphan) { spans.push(orphan); i = orphan.end - 1; continue; }
+    if (orphan) { spans.push(orphan); next = orphan.end; continue; }
     if ((open === '«' || open === '»') && i > 0 && !/[\s([{—–-]/.test(text[i - 1])) continue;
     const raw = text.slice(i + 1);
     const closeIdx = raw.indexOf(close);
@@ -27,7 +29,7 @@ function audiobookSplitByQuotes(text) {
     if (!quote) continue;
     const consumedClose = closeIdx >= 0 && endInRaw === closeIdx;
     spans.push({ start: i, end: i + 1 + endInRaw + (consumedClose ? 1 : 0), quote });
-    i = spans[spans.length - 1].end - 1;
+    next = spans[spans.length - 1].end;
   }
   if (!spans.length) return [{ speaker: 'Narrator', type: 'narration', text, emotion: '' }];
   const out = []; let last = 0;