diff --git a/modules/icing/pireps.py b/modules/icing/pireps.py
index 498dbe63a846b906b0c23bf10f36c2dc6405b722..2bf5dd8fad31013896d656a240fee853ab73a333 100644
--- a/modules/icing/pireps.py
+++ b/modules/icing/pireps.py
@@ -17,7 +17,7 @@ ATYPE = '/TP'
 RMK = '/RM'
 
 
-# Returns icing/neg-icing
+# Returns icing/no_icing/neg-icing
 def pirep_icing(filename, lon_range=[-180, 180], lat_range=[-55, 55]):
 
     # HEADER: VALID,URGENT,AIRCRAFT,REPORT,LAT,LON