diff --git a/src/coco.c b/src/coco.c
index 115a29e5..814b34c5 100644
--- a/src/coco.c
+++ b/src/coco.c
@@ -372,6 +372,7 @@ void run_coco(int argc, char **argv)
 	char *out_filename = find_char_arg(argc, argv, "-out_filename", 0);
     char *prefix = find_char_arg(argc, argv, "-prefix", 0);
     float thresh = find_float_arg(argc, argv, "-thresh", .2);
+	float hier_thresh = find_float_arg(argc, argv, "-hier", .5);
     int cam_index = find_int_arg(argc, argv, "-c", 0);
     int frame_skip = find_int_arg(argc, argv, "-s", 0);
 
@@ -387,6 +388,6 @@ void run_coco(int argc, char **argv)
     else if(0==strcmp(argv[2], "train")) train_coco(cfg, weights);
     else if(0==strcmp(argv[2], "valid")) validate_coco(cfg, weights);
     else if(0==strcmp(argv[2], "recall")) validate_coco_recall(cfg, weights);
-    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, cam_index, filename, coco_classes, 80, frame_skip, 
+    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, hier_thresh, cam_index, filename, coco_classes, 80, frame_skip,
 		prefix, out_filename, http_stream_port, dont_show);
 }
diff --git a/src/demo.c b/src/demo.c
index 3b4e92da..2337a0ad 100644
--- a/src/demo.c
+++ b/src/demo.c
@@ -313,7 +313,8 @@ void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int
 	}
 }
 #else
-void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int cam_index, const char *filename, char **names, int classes, int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show)
+void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int cam_index, const char *filename, char **names, int classes,
+	int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show)
 {
     fprintf(stderr, "Demo needs OpenCV for webcam images.\n");
 }
diff --git a/src/demo.h b/src/demo.h
index 1f142d44..5340db6c 100644
--- a/src/demo.h
+++ b/src/demo.h
@@ -2,6 +2,6 @@
 #define DEMO
 
 #include "image.h"
-void demo(char *cfgfile, char *weightfile, float thresh, int cam_index, const char *filename, char **names, int classes, int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show);
+void demo(char *cfgfile, char *weightfile, float thresh, float hier_thresh, int cam_index, const char *filename, char **names, int classes, int frame_skip, char *prefix, char *out_filename, int http_stream_port, int dont_show);
 
 #endif
diff --git a/src/yolo.c b/src/yolo.c
index 076439df..4bbdf44c 100644
--- a/src/yolo.c
+++ b/src/yolo.c
@@ -345,6 +345,7 @@ void run_yolo(int argc, char **argv)
 	char *out_filename = find_char_arg(argc, argv, "-out_filename", 0);
     char *prefix = find_char_arg(argc, argv, "-prefix", 0);
     float thresh = find_float_arg(argc, argv, "-thresh", .2);
+	float hier_thresh = find_float_arg(argc, argv, "-hier", .5);
     int cam_index = find_int_arg(argc, argv, "-c", 0);
     int frame_skip = find_int_arg(argc, argv, "-s", 0);
     if(argc < 4){
@@ -359,6 +360,6 @@ void run_yolo(int argc, char **argv)
     else if(0==strcmp(argv[2], "train")) train_yolo(cfg, weights);
     else if(0==strcmp(argv[2], "valid")) validate_yolo(cfg, weights);
     else if(0==strcmp(argv[2], "recall")) validate_yolo_recall(cfg, weights);
-    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, cam_index, filename, voc_names, 20, frame_skip, 
+    else if(0==strcmp(argv[2], "demo")) demo(cfg, weights, thresh, hier_thresh, cam_index, filename, voc_names, 20, frame_skip,
 		prefix, out_filename, http_stream_port, dont_show);
 }