diff --git a/scripts/basalt_capture_mocap.py b/scripts/basalt_capture_mocap.py
index 09e269c..ab35593 100755
--- a/scripts/basalt_capture_mocap.py
+++ b/scripts/basalt_capture_mocap.py
@@ -48,7 +48,7 @@ if __name__ == '__main__':
     if not os.path.exists(dataset_path):
         os.makedirs(dataset_path)
 
-    out_file = open(sys.argv[1] + '/data.csv', 'w')
+    out_file = open(dataset_path + '/data.csv', 'w')
     out_file.write('#timestamp [ns], p_RS_R_x [m], p_RS_R_y [m], p_RS_R_z [m], q_RS_w [], q_RS_x [], q_RS_y [], q_RS_z []\n')
     listener()
     out_file.close()