diff --git a/docs/doc_header.md.mustache b/docs/doc_header.md.mustache
index 687c31d..d4f6fc6 100644
--- a/docs/doc_header.md.mustache
+++ b/docs/doc_header.md.mustache
@@ -9,6 +9,7 @@ geometry: "left=2cm,right=2cm,top=2cm,bottom=2.5cm"
 fontsize: 14pt
 mainfont: Latin Modern Sans
 header-includes:
+- \usepackage{hyperref}
 - \hypersetup{colorlinks=true,
           urlcolor=blue,
           linkcolor=[rgb]{0,0,0.5},
diff --git a/docs/project_header.md b/docs/project_header.md
index ce3a4ef..8ddb47d 100644
--- a/docs/project_header.md
+++ b/docs/project_header.md
@@ -4,6 +4,7 @@ geometry: "left=2cm,right=2cm,top=2cm,bottom=3cm"
 fontsize: 14pt
 mainfont: Latin Modern Sans
 header-includes:
+- \usepackage{hyperref}
 - \hypersetup{colorlinks=false,
           allbordercolors={0 0 0},
           pdfborderstyle={/S/U/W 1}}