diff --git a/php/libraries/LorisForm.class.inc b/php/libraries/LorisForm.class.inc
index bc29b94bc18..8a3211d37e8 100644
--- a/php/libraries/LorisForm.class.inc
+++ b/php/libraries/LorisForm.class.inc
@@ -1592,6 +1592,7 @@ class LorisForm
         $checked  = '';
         $value    = '';
         $disabled = '';
+        $required = '';
         if (!empty($val)) {
             $checked = 'checked="checked"';
         }
@@ -1601,6 +1602,9 @@ class LorisForm
         if (isset($el['disabled']) || $this->frozen) {
             $disabled = 'disabled';
         }
+        if (isset($el['required'])) {
+            $required = 'required';
+        }
         /// XXX: There seems to be a problem when using   to separate the
         //  checkbox from the label. Both Firefox and Chrome will still put a
         //  linebreak between the space and the checkbox. Instead, we wrap use
@@ -1609,7 +1613,7 @@ class LorisForm
         //  label it's still allowed to have linebreaks.
         return "<span style=\"white-space: nowrap\"><input name=\"$el[name]\""
             . " type=\"checkbox\" $checked $value "
-            . "$disabled/>"
+            . "$disabled $required/>"
             . " </span>$el[label]";
     }
 
diff --git a/test/unittests/LorisForms_Test.php b/test/unittests/LorisForms_Test.php
index 276616dbb56..61b269c357e 100644
--- a/test/unittests/LorisForms_Test.php
+++ b/test/unittests/LorisForms_Test.php
@@ -1336,7 +1336,7 @@ function testCheckboxHTMLWithNoAttributes()
         $this->form->addCheckbox("abc", "Hello", []);
         $this->assertEquals(
             "<span style=\"white-space: nowrap\"><input name=\"abc\" " .
-            "type=\"checkbox\"   /> </span>Hello",
+            "type=\"checkbox\"    /> </span>Hello",
             $this->form->checkboxHTML($this->form->form['abc'])
         );
     }
@@ -1358,7 +1358,7 @@ function testCheckboxHTMLWithAttributesSet()
         $this->assertEquals(
             "<span style=\"white-space: nowrap\"><input name=\"abc\" " .
             "type=\"checkbox\" checked=\"checked\"" .
-            " value=\"value1\" disabled/> </span>Hello",
+            " value=\"value1\" disabled /> </span>Hello",
             $this->form->checkboxHTML($this->form->form['abc'])
         );
     }