diff --git a/Shorewall-core/lib.common b/Shorewall-core/lib.common
index 5d0ec7ca1..3fbe95f83 100644
--- a/Shorewall-core/lib.common
+++ b/Shorewall-core/lib.common
@@ -79,6 +79,15 @@ fatal_error() # $@ = Message
     exit 2
 }
 
+#
+# Not configured Error
+#
+not_configured() # $@ = Message
+{
+    echo "   ERROR: $@" >&2
+    exit 6
+}
+
 #
 # Get the Shorewall version of the passed script
 #