diff --git a/dnn/nnet.h b/dnn/nnet.h
index a8746c16896150c059e7ae425efd774a5e01f57d..649a1cc3cacaa4edf2a6f60b1c350cc09afeb506 100644
--- a/dnn/nnet.h
+++ b/dnn/nnet.h
@@ -51,6 +51,7 @@ typedef struct {
 #define WEIGHT_TYPE_float 0
 #define WEIGHT_TYPE_int 1
 #define WEIGHT_TYPE_qweight 2
+#define WEIGHT_TYPE_int8 3
 
 typedef struct {
   char head[4];