diff --git a/htdocs/core/ajax/ajaxdirtree.php b/htdocs/core/ajax/ajaxdirtree.php
index 7daa715bbb9..47de50d0fd8 100644
--- a/htdocs/core/ajax/ajaxdirtree.php
+++ b/htdocs/core/ajax/ajaxdirtree.php
@@ -412,15 +412,15 @@ function treeOutputForAbsoluteDir($sqltree, $selecteddir, $fullpathselecteddir,
 						if (preg_match('/^'.preg_quote($val['fullrelativename'].'/', '/').'/', $preopened)) {
 							$collapsedorexpanded = 'expanded';
 						}
-						print '<li class="directory '.$collapsedorexpanded.'">'; // collapsed is opposite if expanded
+						print '<li class="directory '.$collapsedorexpanded.' lidirecm">'; // collapsed is opposite if expanded
 
-						print "<a class=\"fmdirlia jqft ecmjqft\" href=\"";
+						print '<div class="divfmdirlia inline-block"><a class="fmdirlia jqft ecmjqft" href="';
 						print "#";
 						print "\" rel=\"".dol_escape_htmltag($val['fullrelativename'].'/')."\" id=\"fmdirlia_id_".$val['id']."\"";
 						print " onClick=\"loadandshowpreview('".dol_escape_js($val['fullrelativename'])."',".$val['id'].")";
 						print "\">";
 						print dol_escape_htmltag($file);
-						print "</a>";
+						print "</a></div>";
 
 						print '<div class="ecmjqft">';
 
diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index da006de3616..4b1ccc36bc0 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -3318,7 +3318,14 @@ li.expanded > a.fmdirlia.jqft.ecmjqft {
 	font-weight: bold !important;
 }
 
+.divfmdirlia {
+    width: calc(100% - 100px);
+}
 
+a.fmdirlia {
+	white-space: break-spaces;
+	word-break: break-all;
+}
 
 
 /* ============================================================================== */
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index 874e77985a2..687242d2451 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -3303,6 +3303,11 @@ li.expanded > a.fmdirlia.jqft.ecmjqft {
 	font-weight: bold !important;
 }
 
+a.fmdirlia {
+	white-space: break-spaces;
+	word-break: break-all;
+}
+
 
 /* ============================================================================== */
 /* Onglets                                                                        */