diff --git a/Documentation/doc/biblio/cgal_manual.bib b/Documentation/doc/biblio/cgal_manual.bib
index d138cb74c5e..f5430f779a9 100644
--- a/Documentation/doc/biblio/cgal_manual.bib
+++ b/Documentation/doc/biblio/cgal_manual.bib
@@ -148,7 +148,7 @@ Pion and Monique Teillaud and Mariette Yvinec"
    JOURNAL      = {Journal of Computational Geometry},
    NOTE         = {http://hal.inria.fr/hal-00961390},
    PAGES        = {56--85},
-   TITLE        = {Hyperbolic Delaunay complexes and Voronoi diagrams made practical},
+   TITLE        = {{Hyperbolic Delaunay complexes and Voronoi diagrams made practical}},
    VOLUME       = {5},
    YEAR         = {2014},
    DOI          = {10.20382/jocg.v5i1a4},