diff --git a/svx/source/sidebar/possize/SidebarDialControl.cxx b/svx/source/sidebar/possize/SidebarDialControl.cxx
index 55593f87e723..502f959f39e7 100644
--- a/svx/source/sidebar/possize/SidebarDialControl.cxx
+++ b/svx/source/sidebar/possize/SidebarDialControl.cxx
@@ -56,7 +56,7 @@ void SidebarDialControl::HandleMouseEvent( const Point& rPos, bool bInitial )
     if( fH != 0.0 )
     {
         double fAngle = acos( nX / fH );
-        sal_Int32 nAngle = static_cast<sal_Int32>(basegfx::deg2rad(fAngle) * 100.0);
+        sal_Int32 nAngle = static_cast<sal_Int32>(basegfx::rad2deg(fAngle) * 100.0);
         if( nY < 0 )
             nAngle = 36000 - nAngle;
         if( bInitial )  // round to entire 15 degrees