diff --git a/slides.org b/slides.org
index 2da8169..d7d401f 100644
--- a/slides.org
+++ b/slides.org
@@ -8,6 +8,7 @@
 #+LaTeX_CLASS_OPTIONS: [presentation]
 #+BEAMER_THEME: Warsaw
 #+BEAMER_HEADER: \beamertemplatenavigationsymbolsempty
+#+BEAMER_HEADER: \setbeamertemplate{bibliography item}{\insertbiblabel}
 #+BIBLIOGRAPHY: sapsf plain
 #+TODO: RAW(r) DEVOID(v) LACKING(l) DRAFT(d) REVIEWED(R) | READY(+) REHEARSED(D)
 #+COLUMNS: %40ITEM %10DURATION{:} %8TODO %BEAMER_ENV(ENVIRONMENT)