diff --git a/chart2/source/controller/dialogs/tp_ChartType.hxx b/chart2/source/controller/dialogs/tp_ChartType.hxx
index 1d90c3a89b18..8a6e95b6b203 100644
--- a/chart2/source/controller/dialogs/tp_ChartType.hxx
+++ b/chart2/source/controller/dialogs/tp_ChartType.hxx
@@ -35,8 +35,6 @@ class ItemView;
 class TreeIter;
 }
 
-class ValueSet;
-
 namespace chart
 {
 
diff --git a/cui/source/inc/numpages.hxx b/cui/source/inc/numpages.hxx
index a2af733f6d23..ee504be855b4 100644
--- a/cui/source/inc/numpages.hxx
+++ b/cui/source/inc/numpages.hxx
@@ -46,6 +46,7 @@ class ColorListBox;
 class SvxNumValueSet;
 class SvxNumRule;
 class SvxBmpNumValueSet;
+class ValueSet;
 struct ImplSVEvent;
 
 struct SvxNumSettings_Impl
diff --git a/include/svtools/ctrlbox.hxx b/include/svtools/ctrlbox.hxx
index 651817568b10..a629d79a954d 100644
--- a/include/svtools/ctrlbox.hxx
+++ b/include/svtools/ctrlbox.hxx
@@ -209,8 +209,6 @@ inline Color sameDistColor( Color /*rMain*/, Color rDefault )
     return rDefault;
 }
 
-class ValueSet;
-
 class SVT_DLLPUBLIC SvtLineListBox final : public WeldToolbarPopup
 {
 public:
diff --git a/include/svx/sidebar/LineWidthPopup.hxx b/include/svx/sidebar/LineWidthPopup.hxx
index 524790ed2780..32be0a9be081 100644
--- a/include/svx/sidebar/LineWidthPopup.hxx
+++ b/include/svx/sidebar/LineWidthPopup.hxx
@@ -26,8 +26,6 @@
 #include <svtools/toolbarmenu.hxx>
 #include <array>
 
-class ValueSet;
-
 namespace svx::sidebar
 {
 class LinePropertyPanelBase;