diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h
--- a/sys/sys/cdefs.h
+++ b/sys/sys/cdefs.h
@@ -768,7 +768,7 @@
 #endif
 #endif /* __STDC_WANT_LIB_EXT1__ */
 
-#if defined(__mips) || defined(__riscv) || \
+#if defined(__mips) || \
     (defined(__powerpc64__) && (!defined(_CALL_ELF) || _CALL_ELF == 1))
 #define	__NO_TLS 1
 #endif