--- a/handouts/ho04.tex	Wed Oct 07 09:08:55 2020 +0100
+++ b/handouts/ho04.tex	Sun Oct 11 09:10:08 2020 +0100
@@ -907,7 +907,7 @@
 
 \begin{figure}[t]
 \begin{center}
-\mbox{\lstinputlisting[language=while]{../progs/fib.while}}
+\mbox{\lstinputlisting[language=while]{../progs/while-tests/fib.while}}
 \end{center}
 \caption{The Fibonacci program in the While-language.\label{while}}
 \end{figure}