diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f89007dd..0aceba4e7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1780,8 +1780,8 @@ if(NINTENDO_SWITCH)
 			COMMAND ${CMAKE_AR} -x $<TARGET_FILE:zip>
 			COMMAND ${CMAKE_AR} -x $<TARGET_FILE:elf>
 			COMMAND ${CMAKE_AR} -x $<TARGET_FILE:flycast::res>
-			COMMAND ${CMAKE_AR} -rs flycast_libretro_libnx.a *.obj
-			COMMAND rm *.obj
+			COMMAND ${CMAKE_AR} -rs flycast_libretro_libnx.a *.o
+			COMMAND rm *.o
 			WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}
 			DEPENDS xxHash::xxhash chdr-static zip ${PROJECT_NAME})
 	else()