diff --git a/bin/util.py b/bin/util.py
index 7d18e6c..b2d66dc 100644
--- a/bin/util.py
+++ b/bin/util.py
@@ -51,7 +51,7 @@ def report(self, stream=sys.stdout):
 
         if not self.messages:
             return
-        for m in self.messages:
+        for m in sorted(self.messages):
             print(m, file=stream)