diff --git a/lib/convert-worker.js b/lib/convert-worker.js
index ebdd2bb..72a73c2 100644
--- a/lib/convert-worker.js
+++ b/lib/convert-worker.js
@@ -367,6 +367,7 @@ function fixEmDashes(xml) {
   xml = xml.replace(/\s+—”/g, "—”");
   xml = xml.replace(/I-I/g, "I—I");
   xml = xml.replace(/I-uh/g, "I—uh");
+  xml = xml.replace(/-\?/g, "—?");
 
   return xml;
 }