diff --git a/src/gui/foldercreationdialog.h b/src/gui/foldercreationdialog.h
index c3d219f9a18a7..4797b5f932cd9 100644
--- a/src/gui/foldercreationdialog.h
+++ b/src/gui/foldercreationdialog.h
@@ -17,6 +17,8 @@
 
 #include <QDialog>
 
+namespace OCC {
+
 namespace Ui {
 class FolderCreationDialog;
 }
@@ -40,4 +42,6 @@ private slots:
     QString _destination;
 };
 
+}
+
 #endif // FOLDERCREATIONDIALOG_H
diff --git a/src/gui/foldercreationdialog.ui b/src/gui/foldercreationdialog.ui
index 87c7a87d07746..84d7c77e18654 100644
--- a/src/gui/foldercreationdialog.ui
+++ b/src/gui/foldercreationdialog.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>FolderCreationDialog</class>
- <widget class="QDialog" name="FolderCreationDialog">
+ <class>OCC::FolderCreationDialog</class>
+ <widget class="QDialog" name="OCC::FolderCreationDialog">
   <property name="geometry">
    <rect>
     <x>0</x>
@@ -67,7 +67,7 @@
   <connection>
    <sender>buttonBox</sender>
    <signal>accepted()</signal>
-   <receiver>FolderCreationDialog</receiver>
+   <receiver>OCC::FolderCreationDialog</receiver>
    <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">
@@ -83,7 +83,7 @@
   <connection>
    <sender>buttonBox</sender>
    <signal>rejected()</signal>
-   <receiver>FolderCreationDialog</receiver>
+   <receiver>OCC::FolderCreationDialog</receiver>
    <slot>reject()</slot>
    <hints>
     <hint type="sourcelabel">