diff --git a/package/system/procd/files/nand.sh b/package/system/procd/files/nand.sh
index 3b1c749727..0c179cbb03 100644
--- a/package/system/procd/files/nand.sh
+++ b/package/system/procd/files/nand.sh
@@ -322,7 +322,6 @@ nand_upgrade_stage1() {
 		exit 0
 	}
 }
-append sysupgrade_pre_upgrade nand_upgrade_stage1
 
 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
 # 3 types of files: