diff --git a/source/intro.tex b/source/intro.tex
index 3e24d06dce..3fdf69f16e 100644
--- a/source/intro.tex
+++ b/source/intro.tex
@@ -759,7 +759,7 @@
 \begin{footnote}
 ``Correct execution'' can include undefined behavior
 and erroneous behavior, depending on
-the data being processed; see \ref{intro.defs} and~\ref{intro.execution}.
+the data being processed; see \ref{intro.defs} and~\ref{intro.abstract}.
 \end{footnote}
 that program,
 except when the implementation's limitations (see below) are exceeded.