diff --git a/fithesis.dtx b/fithesis.dtx
index 4f0321875a7b60632284618b05586a0c61da0987..2903e5e702bba712ed1d80a901d466d689901972 100644
--- a/fithesis.dtx
+++ b/fithesis.dtx
@@ -56,7 +56,7 @@
   \gdef\thesis@version@number{#1}
   \gdef\thesis@version@date{#2}
   \gdef\thesis@version{#2 #1 fithesis3 MU thesis class}}
-\thesis@versiondef{v0.3.50}{2018/03/25}}
+\thesis@versiondef{v0.3.51-dev}{2018/06/15}}
 % {\newwrite\f\openout\f=VERSION\write\f{\thesis@version}\closeout\f}
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/style/mu/base.dtx b/style/mu/base.dtx
index 2bf55b0e17d1cebe13a4aceb6b61fb36cb8e8dad..11204b62ec22e5b4488f2602e0beb2daa855f071 100644
--- a/style/mu/base.dtx
+++ b/style/mu/base.dtx
@@ -7,7 +7,7 @@
 % after \texttt{style/fithesis-base.sty}, regardless of the value
 % of the |\thesis@style| macro.
 %    \begin{macrocode}
-\ProvidesPackage{fithesis/style/mu/fithesis-base}[2017/06/02]
+\ProvidesPackage{fithesis/style/mu/fithesis-base}[2018/06/15]
 \NeedsTeXFormat{LaTeX2e}
 %    \end{macrocode}
 % The file recognizes the following options: \begin{itemize}
@@ -361,7 +361,6 @@
 \def\thesis@bibliography@setup#1{%
   \setkeys{thesis@bibliography}{#1}}
 %    \end{macrocode}
-% \end{macro}
 % The following key-value pairs are supported:
 % \begin{enumerate}
 %   \item\marg{\texttt{style}=style} -- Stores \texttt{style} in
@@ -383,6 +382,26 @@
     \def\thesis@bibliography@sorting{#1}%
   \fi}
 %    \end{macrocode}
+% \changes{v0.3.51}{2018/06/15}{^^A
+%   Added the \texttt{bibliography} extra field to the style files
+%   of the Masaryk University in Brno, Czech Republic}
+% The following extra data field is defined for the macro:
+% \begin{itemize}
+%   \item|bibliography| -- the comma-delimited list of key-value
+%     pairs accepted by |\thesis@bibliography@setup|. If the data
+%     field was specified, it is immediately passed to
+%     |\thesis@bibliography@setup| and it overrides any defaults
+%     specified in faculty style files.
+% \end{itemize}
+%    \begin{macrocode}
+\thesis@def@extra[]{bibliography}
+\ifx\thesis@extra@bibliography
+    \thesis@placeholder@extra@bibliography\else
+  \expandafter\thesis@bibliography@setup\expandafter{%
+    \thesis@extra@bibliography}%
+\fi
+%    \end{macrocode}
+% \end{macro}
 % \begin{macro}{\thesis@bibliography@load}
 % When |\ifthesis@bibliography@| is true and
 % |\ifthesis@bibliography@loaded@| is false, the