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 c9f9f6c1..97792443 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)) {
 			if (ref.path != m_selectedPalette) {
 				oxLogError(m_model.setPalette(ref.path));
 			}