diff --git a/src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp b/src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp
index 5211211e..8cc7c9ab 100644
--- a/src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp
+++ b/src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp
@@ -445,7 +445,7 @@ void TileSheetEditorImGui::drawPaletteMenu() noexcept {
 	}
 	if (ig::DragDropTarget const dragDropTarget; dragDropTarget) {
 		auto const [ref, err] = ig::getDragDropPayload<studio::FileRef>("FileRef");
-		if (!err) {
+		if (!err && endsWith(ref.path, FileExt_npal)) {
 			auto const oldVal = m_selectedPaletteIdx;
 			std::ignore = ox::findIdx(files.begin(), files.end(), ref.path).moveTo(m_selectedPaletteIdx);
 			if (oldVal != m_selectedPaletteIdx) {