diff --git a/lib/libtcc1.c b/lib/libtcc1.c
index ae94af17..9fb00aa6 100644
--- a/lib/libtcc1.c
+++ b/lib/libtcc1.c
@@ -107,7 +107,7 @@ union float_long {
 };
 
 /* XXX: we don't support several builtin supports for now */
-#if !defined __x86_64__ && !defined __arm__
+#if !defined __x86_64__ && !defined __arm__ && !defined __riscv
 
 /* XXX: use gcc/tcc intrinsic ? */
 #if defined __i386__