diff --git a/common/beamer_configuration.tex b/common/beamer_configuration.tex
index 101da32..c15a7b1 100644
--- a/common/beamer_configuration.tex
+++ b/common/beamer_configuration.tex
@@ -28,7 +28,7 @@
  
 \NewDocumentCommand {\slide} { m O{} O{} }
 	{\begin{frame}{#3}
-		\frametitle{\thesection.\ifnum\thesubsection=0\else\thesubsection.\fi\ \currentname {#2}}
+		\frametitle{\thesection.\ifnum\thesubsection=0\else\thesubsection.\fi\ifnum\thesubsubsection=0\else\thesubsubsection.\fi\ \currentname {#2}}
 		\input{#1}
 	\end{frame}}