diff --git a/koha-tmpl/intranet-tmpl/prog/css/src/staff-global.scss b/koha-tmpl/intranet-tmpl/prog/css/src/staff-global.scss
index 1f0c3274d2..1e6c23282a 100644
--- a/koha-tmpl/intranet-tmpl/prog/css/src/staff-global.scss
+++ b/koha-tmpl/intranet-tmpl/prog/css/src/staff-global.scss
@@ -2094,6 +2094,12 @@ li {
     text-align: center;
 }
 
+.custom_cover_image {
+    img {
+        max-width: 140px;
+    }
+}
+
 .searchhighlightblob {
     font-size: 75%;
     font-style: italic;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
index 21feb30194..f3bb3a1bf4 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/detail.tt
@@ -155,7 +155,7 @@
         [% END %]
 
         [% IF Koha.Preference('CustomCoverImages') && Koha.Preference('CustomCoverImagesURL') %]
-            <a href="[% biblio.custom_cover_image_url | url %]"><img alt="Cover image" src="[% biblio.custom_cover_image_url | url %]" />
+            <a class="custom_cover_image" href="[% biblio.custom_cover_image_url | url %]"><img alt="Cover image" src="[% biblio.custom_cover_image_url | url %]" /></a>
         [% END %]
         [% END %]
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
index 044f490c47..d52245a71d 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/results.tt
@@ -418,7 +418,7 @@
                                                     [% END %]
 
                                                     [% IF Koha.Preference('CustomCoverImages') && Koha.Preference('CustomCoverImagesURL') %]
-                                                        <a href="[% SEARCH_RESULT.biblio_object.custom_cover_image_url | url %]"><img alt="Cover image" src="[% SEARCH_RESULT.biblio_object.custom_cover_image_url | url %]" />
+                                                        <a class="custom_cover_image" href="[% SEARCH_RESULT.biblio_object.custom_cover_image_url | url %]"><img alt="Cover image" src="[% SEARCH_RESULT.biblio_object.custom_cover_image_url | url %]" />
                                                     [% END %]
                                                 </td>
                                             [% END # /IF( AmazonCoverImages || LocalCoverImages || AdlibrisEnabled || IntranetCoce )%]