diff --git a/arch/riscv/configs/fpga_defconfig b/arch/riscv/configs/fpga_defconfig
index df1f4dcce085ee5d9ff38dd31cbdbdacf6ec228d..6d4986bdfc08056ceef623c213475afac6a4fd42 100644
--- a/arch/riscv/configs/fpga_defconfig
+++ b/arch/riscv/configs/fpga_defconfig
@@ -175,7 +175,7 @@ CONFIG_NET_NS=y
 # CONFIG_SYSFS_DEPRECATED is not set
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="arch/riscv/rootfs/initramfs.txt"
+CONFIG_INITRAMFS_SOURCE="${RISCV_ROOTFS_HOME}/rootfsimg/initramfs.txt"
 CONFIG_INITRAMFS_ROOT_UID=0
 CONFIG_INITRAMFS_ROOT_GID=0
 CONFIG_RD_GZIP=y