diff --git a/configs/andes_ae350_45_defconfig b/configs/andes_ae350_45_defconfig
index a60c4b25a0..fd8b7db0e7 100644
--- a/configs/andes_ae350_45_defconfig
+++ b/configs/andes_ae350_45_defconfig
@@ -1,9 +1,4 @@
 BR2_riscv=y
-BR2_riscv_custom=y
-BR2_RISCV_ISA_RVM=y
-BR2_RISCV_ISA_RVA=y
-BR2_RISCV_ISA_RVF=y
-BR2_RISCV_ISA_RVD=y
 BR2_RISCV_ISA_RVC=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_0=y
 BR2_GLOBAL_PATCH_DIR="board/andes/ae350/patches"