diff --git a/sample-book.pdf b/sample-book.pdf
index 034c26d..bb603af 100644
Binary files a/sample-book.pdf and b/sample-book.pdf differ
diff --git a/sample-handout.pdf b/sample-handout.pdf
index 3f73778..3549288 100644
Binary files a/sample-handout.pdf and b/sample-handout.pdf differ
diff --git a/tufte-common.sty b/tufte-common.sty
index 282f00e..ad9fa08 100644
--- a/tufte-common.sty
+++ b/tufte-common.sty
@@ -535,6 +535,7 @@
 % Executing \@tufte@trim@spaces\xyzzy will result in the contents of \xyzzy
 % being trimmed of leading and trailing white space.
 
+\catcode`\Q=3
 \def\@tufte@trim@spaces#1{%
   % Use grouping to emulate a multi-token afterassignment queue
   \begingroup%
@@ -558,7 +559,7 @@
 % token at the beginning of the trimmed text. The \endgroup will feed
 % in the \aftergroup tokens after the \vfuzz assignment is completed.
 \def\@tufte@trim@c#1Q#2{\afterassignment\endgroup \vfuzz\the\vfuzz#1}
-
+\catcode`\Q=11
 
 %%
 % Citations should go in the margin as sidenotes