diff --git a/knot_ b/knot_
index ffbc0b0..fadf50c 100755
--- a/knot_
+++ b/knot_
@@ -34,6 +34,7 @@ def responses(stats, config):
         for code in responses_stats:
             print(f"{code}.value {responses_stats[code]}")
 
+
 def proto(stats, config):
     '''
     This will show if ipv4 or ipv6 and if tcp or udp are used.
@@ -69,7 +70,7 @@ if __name__ == '__main__':
     munin_time = getenv('munin_time', 300)
     with open(file, "r") as stats_file:
         stats = yaml.safe_load(stats_file)
-    if not "mod-stats" in stats:
+    if "mod-stats" not in stats:
         raise Exception("Please configure knot with mod-stats")
     if len(argv) > 1 and argv[1] == "config":
         config = True