diff --git a/dolphin/src/search/dolphinfacetswidget.h b/dolphin/src/search/dolphinfacetswidget.h
index 8f6d8eb6f5..757dcd4825 100644
--- a/dolphin/src/search/dolphinfacetswidget.h
+++ b/dolphin/src/search/dolphinfacetswidget.h
@@ -29,6 +29,7 @@
 
 class QButtonGroup;
 class QCheckBox;
+class QDate;
 class QRadioButton;
 
 /**