diff --git a/_src/_layouts/page.html b/_src/_layouts/page.html
index 16d2709..d2f18f0 100644
--- a/_src/_layouts/page.html
+++ b/_src/_layouts/page.html
@@ -41,7 +41,7 @@ layout: base
 
             <p class="text-center">
                 {% for whitepaper in page.whitepaper.files %}
-                    <a href="{{ whitepaper.file }}" class="btn btn-primary js-tracking-whitepaper-download"><svg class="icon"><use xlink:href="/assets/img/sprite.svg#icon-documents"></use></svg> {{ whitepaper.button }}</a>
+                    <a href="{{ whitepaper.file }}" class="btn {{ whitepaper.class }} js-tracking-whitepaper-download"><svg class="icon"><use xlink:href="/assets/img/sprite.svg#icon-documents"></use></svg> {{ whitepaper.button }}</a>
                 {% endfor %}
             </p>
             <p class="text-center small">Last updated: {{ page.whitepaper.updated | date: '%B %d, %Y' }}</p>
diff --git a/_src/whitepaper/index.md b/_src/whitepaper/index.md
index 34ec8e5..a70b5c0 100644
--- a/_src/whitepaper/index.md
+++ b/_src/whitepaper/index.md
@@ -13,10 +13,12 @@ whitepaper:
     text: The whitepaper is no longer a living document. Significant changes made since June 8, 2016 are noted in an Addendum attached at the end.
     updated: 2017-05-23
     files:
-        - file: bigchaindb-whitepaper.pdf
-          button: Download whitepaper (pdf)
         - file: bigchaindb-primer.pdf
           button: Download primer (pdf)
+          class: btn-primary
+        - file: bigchaindb-whitepaper.pdf
+          button: Download whitepaper (pdf)
+          class: btn-link
 ---
 
 *by <br>Trent McConaghy, Rodolphe Marques, Andreas Müller, Dimitri De Jonghe, Troy McConaghy, Greg McMullen, Ryan Henderson, Sylvain Bellemare, Alberto Granzotto*