diff --git a/deps/nostalgia/src/nostalgia/modules/core/src/studio/tilesheeteditor/commands/addsubsheetcommand.cpp b/deps/nostalgia/src/nostalgia/modules/core/src/studio/tilesheeteditor/commands/addsubsheetcommand.cpp
index a822cc7..8aa99f1 100644
--- a/deps/nostalgia/src/nostalgia/modules/core/src/studio/tilesheeteditor/commands/addsubsheetcommand.cpp
+++ b/deps/nostalgia/src/nostalgia/modules/core/src/studio/tilesheeteditor/commands/addsubsheetcommand.cpp
@@ -46,9 +46,11 @@ ox::Error AddSubSheetCommand::undo() noexcept {
 		parent.columns = s.columns;
 		parent.pixels = std::move(s.pixels);
 		parent.subsheets.clear();
+		--m_img.idIt;
 	} else {
 		for (auto idx = m_addedSheets.rbegin(); idx != m_addedSheets.rend(); ++idx) {
 			oxReturnError(rmSubSheet(m_img, *idx));
+			--m_img.idIt;
 		}
 	}
 	return {};