diff --git a/common/waifu2x.h b/common/waifu2x.h
index 59ce928..9647677 100644
--- a/common/waifu2x.h
+++ b/common/waifu2x.h
@@ -66,6 +66,8 @@ public:
 			int scale_factor;
 			int offset;
 			int recommended_crop_size;
+
+			stParam() : scale_factor(1), offset(0), recommended_crop_size(-1) {}
 		};
 
 		std::string name;