diff --git a/backend/app/Controllers/ElementController.php b/backend/app/Controllers/ElementController.php
index 5fc14d7..31c162c 100644
--- a/backend/app/Controllers/ElementController.php
+++ b/backend/app/Controllers/ElementController.php
@@ -339,9 +339,8 @@ class ElementController
             'id' => $element->getId(),
             'title' => $element->getTitle(),
             'description' => $element->getDescription(),
-            'iconImageUrl' => $this->storageUrl(
-                $element->getIconImageUrl(),
-                'element-icons/',
+            'iconImageUrl' => $this->iconImageUrl(
+                $element->getIconImageUrl()
             ),
             'richText' => $element->getRichText(),
             'shortPdfPath' => $this->storageUrl(
@@ -397,6 +396,22 @@ class ElementController
         ];
     }
 
+    private function iconImageUrl(?string $path): ?string
+    {
+        if ($path === null) {
+            return null;
+        }
+
+        if (
+            str_starts_with($path, 'element-icons/')
+            || str_starts_with($path, 'set-icons/')
+        ) {
+            return $this->filesystem->url($path);
+        }
+
+        return $path;
+    }
+
     private function storageUrl(?string $path, string $folderPrefix): ?string
     {
         if ($path === null) {