diff --git a/t/digestion/box.pdf b/t/digestion/box.pdf
index 29b072c45..c1335e3a3 100644
Binary files a/t/digestion/box.pdf and b/t/digestion/box.pdf differ
diff --git a/t/digestion/box.tex b/t/digestion/box.tex
index 134e29ab5..10cbc0189 100644
--- a/t/digestion/box.tex
+++ b/t/digestion/box.tex
@@ -62,7 +62,7 @@
 \copy\myboxC
 
 
-Box use should not unbind "grandparent" assignments.
+Box use should not unbind ``grandparent'' assignments.
 
 
 \newbox\myboxD
diff --git a/t/digestion/box.xml b/t/digestion/box.xml
index 14f9140f4..eed605e81 100644
--- a/t/digestion/box.xml
+++ b/t/digestion/box.xml
@@ -153,7 +153,7 @@
     <p>Black, then red, then black.</p>
   </para>
   <para xml:id="p19">
-    <p>Box use should not unbind ”grandparent” assignments.</p>
+    <p>Box use should not unbind “grandparent” assignments.</p>
   </para>
   <para vattach="bottom" xml:id="p20">
     <p>D must appear twice.</p>