diff --git a/include/modules.h b/include/modules.h
index ba0a2bc8f..aa1d6c6c6 100644
--- a/include/modules.h
+++ b/include/modules.h
@@ -148,7 +148,7 @@ struct ModuleLang_ {
 
 enum CommandFlags
 {
-	CFLAG_ALLOW_UNREGISTERED
+	CFLAG_ALLOW_UNREGISTERED = 1
 };
 
 /** Every services command is a class, inheriting from Command.