diff --git a/src/nostalgia/modules/gfx/src/studio/tilesheeteditor/tilesheeteditormodel.cpp b/src/nostalgia/modules/gfx/src/studio/tilesheeteditor/tilesheeteditormodel.cpp
index 7ff98b84..89bdf296 100644
--- a/src/nostalgia/modules/gfx/src/studio/tilesheeteditor/tilesheeteditormodel.cpp
+++ b/src/nostalgia/modules/gfx/src/studio/tilesheeteditor/tilesheeteditormodel.cpp
@@ -231,6 +231,7 @@ void TileSheetEditorModel::setActiveSubsheet(TileSheet::SubSheetIdx const &idx)
 	m_activeSubsSheetIdx = idx;
 	this->activeSubsheetChanged.emit(m_activeSubsSheetIdx);
 	clearSelection();
+	m_lastDrawUpdatePt = {-1, -1};
 }
 
 void TileSheetEditorModel::fill(ox::Point const &pt, uint8_t const palIdx) noexcept {