diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
index 6b8323d5aa..ebc479d81b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
@@ -7,7 +7,29 @@
 <title>Z39.50/SRU search results &rsaquo; Koha</title>
 [% INCLUDE 'doc-head-close.inc' %]
 <style>
-    #dataPreview { width : 90%; top: 5%; } .modal-body { max-height: 380px; } .modal-header { padding: 0 14px; } @media (max-width: 767px) { #dataPreview { margin: 0; width : auto; } }
+    #dataPreview {
+        width : 90%;
+        top: 5%;
+    }
+
+    #dataPreview pre {
+        overflow: unset;
+    }
+
+    .modal-body {
+        max-height: 380px;
+    }
+
+    .modal-header {
+        padding: 0 14px;
+    }
+
+    @media (max-width: 767px) {
+        #dataPreview {
+            margin: 0;
+            width : auto;
+        }
+    }
 </style>
 </head>