diff --git a/libc/arch-riscv64/string/strlen_vext.S b/libc/arch-riscv64/string/strlen_vext.S
index 393af58..694f95c 100644
--- a/libc/arch-riscv64/string/strlen_vext.S
+++ b/libc/arch-riscv64/string/strlen_vext.S
@@ -55,7 +55,7 @@
 
 #if defined(__riscv_v)
 
-#include "sys/asm.h"
+#include <private/bionic_asm.h>
 
 #define iResult a0
 #define pStr a0