diff --git a/preamble.tex b/preamble.tex
index f9f1dfd3dc30382240ab7d1f3bcafdbcd86a2b6c..164ca5f1255362f08490e372d0787d396e63ea14 100644
--- a/preamble.tex
+++ b/preamble.tex
@@ -143,7 +143,7 @@ bookmarks=true]%
 {8pt}
 {\Large\bfseries\filcenter}
 
-\titleformat{\subsection}{\needspace{13em}\center\large\bfseries}{}{1em}{}[\rule{.9\linewidth}{.2pt}]
+\titleformat{\subsection}{\needspace{10em}\center\large\bfseries}{}{1em}{}[\rule{.9\linewidth}{.2pt}]
 %
 \titleformat{\subsubsection}
 {\needspace{3em}\normalfont\normalsize\bfseries}{\thesubsubsection}{1em}{}