diff --git a/core/views_caves.py b/core/views_caves.py
index 90b6f5e..2c32aa4 100644
--- a/core/views_caves.py
+++ b/core/views_caves.py
@@ -30,10 +30,10 @@ def numericalcmp(x, y):
 
 
 
-def caveCmp(x, y):
+def caveCmp(x, y): 
     if x.kataster_number:
       if y.kataster_number:
-        return numericalcmp(x.kataster_number, y.kataster_number)
+        return numericalcmp(x.kataster_number, y.kataster_number) # Note that cave kataster numbers are not generally integers.
       else:
         return -1
     else: