diff --git a/lib/conf.d/data_templates/DublinCore.xml b/lib/conf.d/data_templates/DublinCore.xml
index aada9b2258..e50bf58612 100644
--- a/lib/conf.d/data_templates/DublinCore.xml
+++ b/lib/conf.d/data_templates/DublinCore.xml
@@ -148,7 +148,7 @@
             </subdef>
             <subdef class="preview" name="preview" downloadable="false">
                 <path>{{datapathnoweb}}{{basename}}/subdefs</path>
-                <mediatype>flexpaper</mediatype>
+                <mediatype>pdf</mediatype>
                 <writeDatas>no</writeDatas>
                 <devices>screen</devices>
                 <label lang="fr">Prévisualisation</label>
diff --git a/lib/conf.d/data_templates/en-simple.xml b/lib/conf.d/data_templates/en-simple.xml
index e42b18a490..d4a00c347b 100644
--- a/lib/conf.d/data_templates/en-simple.xml
+++ b/lib/conf.d/data_templates/en-simple.xml
@@ -148,7 +148,7 @@
             </subdef>
             <subdef class="preview" name="preview" downloadable="false">
                 <path>{{datapathnoweb}}{{basename}}/subdefs</path>
-                <mediatype>flexpaper</mediatype>
+                <mediatype>pdf</mediatype>
                 <writeDatas>no</writeDatas>
                 <devices>screen</devices>
                 <label lang="fr">Prévisualisation</label>
diff --git a/lib/conf.d/data_templates/fr-simple.xml b/lib/conf.d/data_templates/fr-simple.xml
index 6af9a072f3..3ada8adaa6 100644
--- a/lib/conf.d/data_templates/fr-simple.xml
+++ b/lib/conf.d/data_templates/fr-simple.xml
@@ -148,7 +148,7 @@
             </subdef>
             <subdef class="preview" name="preview" downloadable="false">
                 <path>{{datapathnoweb}}{{basename}}/subdefs</path>
-                <mediatype>flexpaper</mediatype>
+                <mediatype>pdf</mediatype>
                 <writeDatas>no</writeDatas>
                 <devices>screen</devices>
                 <label lang="fr">Prévisualisation</label>