diff --git a/schainpy/model/data/jrodata.py b/schainpy/model/data/jrodata.py
index 9a32436..7f94ce3 100644
--- a/schainpy/model/data/jrodata.py
+++ b/schainpy/model/data/jrodata.py
@@ -523,6 +523,8 @@ class Spectra(JROData):
     
     profileIndex = 0
     
+    plotting = "spectra"
+    
     def __init__(self):
         '''
         Constructor