1diff --git a/webrtc/typedefs.h b/webrtc/typedefs.h
2index d875490..ce1f3e8 100644
3--- a/webrtc/typedefs.h
4+++ b/webrtc/typedefs.h
5@@ -26,6 +26,13 @@
6 #elif defined(__aarch64__)
7 #define WEBRTC_ARCH_64_BITS
8 #define WEBRTC_ARCH_LITTLE_ENDIAN
9+#elif defined(__riscv) || defined(__riscv__)
10+#define WEBRTC_ARCH_LITTLE_ENDIAN
11+#if __riscv_xlen == 64
12+#define WEBRTC_ARCH_64_BITS
13+#else
14+#define WEBRTC_ARCH_32_BITS
15+#endif
16 #elif defined(_M_IX86) || defined(__i386__)
17 #define WEBRTC_ARCH_X86_FAMILY
18 #define WEBRTC_ARCH_X86