diff --git a/package_linter.py b/package_linter.py
index 9f73713..8d5ace1 100755
--- a/package_linter.py
+++ b/package_linter.py
@@ -1543,18 +1543,17 @@ class Configurations(TestSuite):
                 yield Warning("Can't open/read %s: %s" % (filename, e))
                 return
 
-            for line in content.split("\n"):
-                comment = ["#", "//", ";"]
+            for number, line in enumerate(content.split("\n"), 1):
+                comment = ("#", "//", ";")
                 if (
-                    "0.0.0.0" in line
-                    or "::" in line
+                    ( "0.0.0.0" in line or "::" in line )
                     and not line.strip().startswith(comment)
                 ):
                     yield Info(
-                        "%s: Binding to '0.0.0.0' or '::' can result in a security issue as "
-                        "the SSO can be bypassed by knowing a public IP (typically an IPv6) "
-                        "and the app port. Please be sure that this behavior is intentional.\n"
-                        "Maybe use '127.0.0.1' or '::1' instead." % filename
+                        f"{filename}:{number}: Binding to '0.0.0.0' or '::' can result in "
+                        "a security issue as the SSO can be bypassed by knowing a public "
+                        "IP (typically an IPv6) and the app port. Please be sure that this "
+                        "behavior is intentional. Maybe use '127.0.0.1' or '::1' instead."
                     )
 
 #############################################