diff --git a/Makefile b/Makefile
index 3c62d03d6..87f5a68d5 100644
--- a/Makefile
+++ b/Makefile
@@ -108,7 +108,7 @@ OpenBL602: submodules sdk/OpenBL602/customer_app/bl602_sharedApp/bl602_sharedApp
 	$(MAKE) -C sdk/OpenBL602/customer_app/bl602_sharedApp CONFIG_CHIP_NAME=BL602 bins
 	mkdir -p output/$(APP_VERSION)
 	cp sdk/OpenBL602/customer_app/bl602_sharedApp/build_out/bl602_sharedApp.bin output/$(APP_VERSION)/OpenBL602_$(APP_VERSION).bin
-	cp sdk/OpenBL602/customer_app/bl602_sharedApp/build_out/ota/dts40M_pt2M_boot2release_ef4015/FW_OTA.bin.xz  output/$(APP_VERSION)/OpenBL602_$(APP_VERSION).xz
+	cp sdk/OpenBL602/customer_app/bl602_sharedApp/build_out/ota/dts40M_pt2M_boot2release_ef4015/FW_OTA.bin.xz output/$(APP_VERSION)/OpenBL602_$(APP_VERSION).xz
 	
 sdk/OpenW800/tools/w800/csky/bin: submodules
 	mkdir -p sdk/OpenW800/tools/w800/csky