diff --git a/pyModeS/decoder/bds/bds40.py b/pyModeS/decoder/bds/bds40.py
index a473da5..53a95b2 100644
--- a/pyModeS/decoder/bds/bds40.py
+++ b/pyModeS/decoder/bds/bds40.py
@@ -61,7 +61,6 @@ def is40(msg):
 
     if bin2int(d[51:53]) != 0:
         return False
-    
 
     return True