diff --git a/Arrangement_2/doc_tex/Sweep_line_2/sweep_line.tex b/Arrangement_2/doc_tex/Sweep_line_2/sweep_line.tex
index d47b75c2867..60ac8d313d7 100644
--- a/Arrangement_2/doc_tex/Sweep_line_2/sweep_line.tex
+++ b/Arrangement_2/doc_tex/Sweep_line_2/sweep_line.tex
@@ -49,7 +49,7 @@ a set of four input segments illustrated in figure \ref{SL_sec:simple}.
 \end{center}
 \end{figure}
 
-\ccIncludeExampleCode{../examples/Arrangement_2/ex_sweep_line.C}
+\ccIncludeExampleCode{../examples/Arrangement_2/ex_sweep_line.cpp}
 
 \section*{Design and Implementation History}
 %===========================================