diff --git a/media/webrtc/trunk/webrtc/typedefs.h b/media/webrtc/trunk/webrtc/typedefs.h
index a236e87d6c..03cbbe0572 100644
--- a/media/webrtc/trunk/webrtc/typedefs.h
+++ b/media/webrtc/trunk/webrtc/typedefs.h
@@ -123,6 +123,11 @@
 #elif defined(__pnacl__)
 #define WEBRTC_ARCH_32_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
+#elif defined(__loongarch64)
+#define WEBRTC_ARCH_LOONGARCH64 1
+#define WEBRTC_ARCH_64_BITS 1
+#define WEBRTC_ARCH_LITTLE_ENDIAN
+#define WEBRTC_LITTLE_ENDIAN
 #else
 #error Please add support for your architecture in typedefs.h
 #endif