diff --git a/duoqin/duoqin_f21pro.mk b/duoqin/duoqin_f21pro.mk
index 8f5e4ad..acb702a 100644
--- a/duoqin/duoqin_f21pro.mk
+++ b/duoqin/duoqin_f21pro.mk
@@ -24,7 +24,7 @@ $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_product.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/gsi_release.mk)
 
 
-PRODUCT_NAME := duoqin-f21pro
+PRODUCT_NAME := duoqin_f21pro
 PRODUCT_DEVICE := duoqin
 PRODUCT_BRAND := generic
 PRODUCT_MODEL := F21pro - wePhone