diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
index 25ab667927..cbe2038a77 100644
--- a/toolchain/toolchain-buildroot/Config.in
+++ b/toolchain/toolchain-buildroot/Config.in
@@ -52,6 +52,7 @@ config BR2_TOOLCHAIN_BUILDROOT_GLIBC
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
 	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10 || !BR2_powerpc64le
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5 || !BR2_MIPS_NAN_2008
 	depends on !BR2_powerpc_SPE
 	select BR2_TOOLCHAIN_USES_GLIBC
 	# our glibc.mk enables RPC support