diff --git a/elegantpaper.cls b/elegantpaper.cls
index 4b4a2a3..828171b 100644
--- a/elegantpaper.cls
+++ b/elegantpaper.cls
@@ -197,7 +197,6 @@
   backend=\ELEGANT@bibend,
   citestyle=\ELEGANT@citestyle,
   bibstyle=\ELEGANT@bibstyle]{biblatex}
-\defbibheading{elegantbook}[\ebibname]{#1}
 
 \RequirePackage{appendix}