diff --git a/linux-riscv32/crosstool-ng.config b/linux-riscv32/crosstool-ng.config
index 8c8bc37..b6f8a34 100644
--- a/linux-riscv32/crosstool-ng.config
+++ b/linux-riscv32/crosstool-ng.config
@@ -183,7 +183,7 @@ CT_ARCH_32=y
 CT_ARCH_SUPPORTS_WITH_ARCH=y
 CT_ARCH_SUPPORTS_WITH_ABI=y
 CT_ARCH_SUPPORTS_WITH_TUNE=y
-CT_ARCH_ARCH=""
+CT_ARCH_ARCH="rv32gc"
 CT_ARCH_ABI=""
 CT_TARGET_CFLAGS=""
 CT_TARGET_LDFLAGS=""
diff --git a/linux-riscv64/crosstool-ng.config b/linux-riscv64/crosstool-ng.config
index f485de6..d14e7e2 100644
--- a/linux-riscv64/crosstool-ng.config
+++ b/linux-riscv64/crosstool-ng.config
@@ -183,7 +183,7 @@ CT_ARCH_64=y
 CT_ARCH_SUPPORTS_WITH_ARCH=y
 CT_ARCH_SUPPORTS_WITH_ABI=y
 CT_ARCH_SUPPORTS_WITH_TUNE=y
-CT_ARCH_ARCH=""
+CT_ARCH_ARCH="rv64gc"
 CT_ARCH_ABI=""
 CT_TARGET_CFLAGS=""
 CT_TARGET_LDFLAGS=""