diff --git a/chsdi/templates/htmlpopup/geothermie.mako b/chsdi/templates/htmlpopup/geothermie.mako
index a6991da0b3..361154e31b 100644
--- a/chsdi/templates/htmlpopup/geothermie.mako
+++ b/chsdi/templates/htmlpopup/geothermie.mako
@@ -1,5 +1,5 @@
 <%inherit file="base.mako"/>
 
 <%def name="table_body(c,lang)">
-   <tr><td class="cell-left">${_('geothermie')}</td><td>${c['attributes']['contour'] or '-'}</td></tr>
+   <tr><td class="cell-left">${_('geothermie')}</td><td>${int(c['attributes']['contour']) or '-'}</td></tr>
 </%def>