diff --git a/libc/arch-common/bionic/crtbegin.c b/libc/arch-common/bionic/crtbegin.c
index 9b8ad4e..b87db64 100644
--- a/libc/arch-common/bionic/crtbegin.c
+++ b/libc/arch-common/bionic/crtbegin.c
@@ -56,6 +56,8 @@
 __asm__(PRE
         "xorl %ebp,%ebp; movl %esp,%eax; andl $~0xf,%esp; subl $12,%esp; pushl %eax;"
         "call _start_main" POST);
+#elif defined(__riscv)
+__asm__(PRE "li fp,0; li ra,0; mv a0,sp; tail _start_main" POST);
 #elif defined(__x86_64__)
 __asm__(PRE "xorl %ebp, %ebp; movq %rsp,%rdi; andq $~0xf,%rsp; callq _start_main" POST);
 #else