2 files changed, 2 insertions, 1 deletions
diff --git a/starmath/inc/ElementsDockingWindow.hxx b/starmath/inc/ElementsDockingWindow.hxx
index b075e0d391d1..c29d85ca1a87 100644
--- a/starmath/inc/ElementsDockingWindow.hxx
+++ b/starmath/inc/ElementsDockingWindow.hxx
@@ -96,7 +96,7 @@ class SmElementsControl : public Control
     SmElementList maElementList;
     Size          maMaxElementDimensions;
     bool          mbVerticalMode;
-    std::unique_ptr<ScrollBar> mxScroll;
+    VclPtr< ScrollBar > mxScroll;
 
     void addElement(const OUString& aElementVisual, const OUString& aElementSource, const OUString& aHelpText);
 
diff --git a/starmath/source/ElementsDockingWindow.cxx b/starmath/source/ElementsDockingWindow.cxx
index 1797c9a57a23..4ead68629757 100644
--- a/starmath/source/ElementsDockingWindow.cxx
+++ b/starmath/source/ElementsDockingWindow.cxx
@@ -244,6 +244,7 @@ SmElementsControl::~SmElementsControl()
 void SmElementsControl::dispose()
 {
     mpDocShell->DoClose();
+    mpScroll.disposeAndClear();
     Control::dispose();
 }