diff --git a/main.tex b/main.tex
index 5d2a43b..d418a59 100644
--- a/main.tex
+++ b/main.tex
@@ -43,17 +43,19 @@
 \usepackage{float}
 \usepackage{caption}
 
+\graphicspath{{graphics/}}
+\DeclareGraphicsExtensions{.pdf, .png}
+
 \definecolor{material_red}{HTML}{d50000}
 \definecolor{material_green}{HTML}{00c853}
 \definecolor{material_blue}{HTML}{2962ff}
 
-\graphicspath{{graphics/}}
-\DeclareGraphicsExtensions{.pdf, .png}
-
 \newcommand{\kat}[1]{\noindent\textcolor{material_red}{\textbf{Katerina:} #1}}
 \newcommand{\mk}[1]{\noindent\textcolor{material_green}{\textbf{Manos:} #1}}
 \newcommand{\dk}[1]{\noindent\textcolor{material_blue}{\textbf{Dimitris:} #1}}
 
+\newcommand{\thetitle}{Quality \& Privacy in User-generated Big Data: Algorithms \& Techniques}
+
 \newtheorem{definition}{Definition}
 \newtheorem{example}{Example}[section]
 \newtheorem{proposition}{Proposition}
diff --git a/titlepage.tex b/titlepage.tex
index 72be6b9..a3212f6 100644
--- a/titlepage.tex
+++ b/titlepage.tex
@@ -2,8 +2,7 @@
 
   \centering
 
-  {\huge Quality \& Privacy in User-generated Big Data:\\
-  Algorithms \& Techniques\\}
+  {\huge \thetitle\\}
   \vspace{6em}
 
   {PRÉSENTÉE LE ** *** ****\\}