diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
index 1b9f3a3aca..d4e3bccde5 100644
--- a/toolchain/toolchain-buildroot/Config.in
+++ b/toolchain/toolchain-buildroot/Config.in
@@ -23,7 +23,8 @@ source "package/linux-headers/Config.in.host"
 choice
 	prompt "C library"
 	default BR2_TOOLCHAIN_UCLIBC
-	default BR2_TOOLCHAIN_BUILDROOT_EGLIBC if BR2_mips64 || BR2_mips64el
+	default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_aarch64 || BR2_microblaze \
+		|| BR2_mips64 || BR2_mips64el || BR2_powerpc64
 
 config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
 	bool "uClibc"