diff --git a/modules/doc/library/Doc/SectionFilterIterator.php b/modules/doc/library/Doc/DocSectionFilterIterator.php
similarity index 95%
rename from modules/doc/library/Doc/SectionFilterIterator.php
rename to modules/doc/library/Doc/DocSectionFilterIterator.php
index 77171a5c8..1087d1584 100644
--- a/modules/doc/library/Doc/SectionFilterIterator.php
+++ b/modules/doc/library/Doc/DocSectionFilterIterator.php
@@ -14,7 +14,7 @@ use Icinga\Data\Tree\TreeNodeIterator;
  *     {@inheritdoc}
  * }
  */
-class SectionFilterIterator extends RecursiveFilterIterator implements Countable
+class DocSectionFilterIterator extends RecursiveFilterIterator implements Countable
 {
     /**
      * Chapter to filter for
diff --git a/modules/doc/library/Doc/DocSectionRenderer.php b/modules/doc/library/Doc/DocSectionRenderer.php
index 1665468c1..f03474b4a 100644
--- a/modules/doc/library/Doc/DocSectionRenderer.php
+++ b/modules/doc/library/Doc/DocSectionRenderer.php
@@ -61,7 +61,7 @@ class DocSectionRenderer extends DocRenderer
     public function __construct(SimpleTree $tree, $chapter = null)
     {
         if ($chapter !== null) {
-            $filter = new SectionFilterIterator($tree->getIterator(), $chapter);
+            $filter = new DocSectionFilterIterator($tree->getIterator(), $chapter);
             if ($filter->isEmpty()) {
                 throw new ChapterNotFoundException(
                     mt('doc', 'Chapter %s not found'), $chapter