diff --git a/common/dialogs/panel_mouse_settings.cpp b/common/dialogs/panel_mouse_settings.cpp
index 1e93e37060..5036f4db77 100644
--- a/common/dialogs/panel_mouse_settings.cpp
+++ b/common/dialogs/panel_mouse_settings.cpp
@@ -30,7 +30,8 @@ using KIGFX::MOUSE_DRAG_ACTION;
 
 PANEL_MOUSE_SETTINGS::PANEL_MOUSE_SETTINGS( DIALOG_SHIM* aDialog, wxWindow* aParent ) :
         PANEL_MOUSE_SETTINGS_BASE( aParent ),
-        m_dialog( aDialog )
+        m_dialog( aDialog ),
+        m_currentScrollMod( {} )
 {
     m_checkAutoZoomSpeed->Bind( wxEVT_COMMAND_CHECKBOX_CLICKED,
             [&]( wxCommandEvent& aEvt )
diff --git a/common/view/wx_view_controls.cpp b/common/view/wx_view_controls.cpp
index e5e19f848a..ca9e99d498 100644
--- a/common/view/wx_view_controls.cpp
+++ b/common/view/wx_view_controls.cpp
@@ -63,6 +63,7 @@ WX_VIEW_CONTROLS::WX_VIEW_CONTROLS( VIEW* aView, wxScrolledCanvas* aParentPanel
         m_state( IDLE ),
         m_parentPanel( aParentPanel ),
         m_scrollScale( 1.0, 1.0 ),
+        m_initialZoomScale( 0.0 ),
 #ifdef __WXGTK3__
         m_lastTimestamp( 0 ),
 #endif