diff --git a/cmake/toolchain/llvm/Kconfig b/cmake/toolchain/llvm/Kconfig
index b16d0273939..0e2e3e85863 100644
--- a/cmake/toolchain/llvm/Kconfig
+++ b/cmake/toolchain/llvm/Kconfig
@@ -17,3 +17,8 @@ config LLVM_USE_LLD
 	  Use LLVM built-in lld linker with llvm/clang.
 
 endchoice
+
+config TOOLCHAIN_LLVM_SUPPORTS_THREAD_LOCAL_STORAGE
+	depends on RISCV
+	def_bool y
+	select TOOLCHAIN_SUPPORTS_THREAD_LOCAL_STORAGE