diff --git a/text/preliminaries/summary.tex b/text/preliminaries/summary.tex
index 53c50e6..c7edd65 100644
--- a/text/preliminaries/summary.tex
+++ b/text/preliminaries/summary.tex
@@ -1,4 +1,4 @@
 \section{Summary}
-\label{sec:sum-bg}
+\label{sec:sum-prel}
 
 This is the summary of this chapter.