diff --git a/data/core/about.cfg b/data/core/about.cfg
index caa65b5b929..8ff484091a0 100644
--- a/data/core/about.cfg
+++ b/data/core/about.cfg
@@ -1,4 +1,4 @@
-#textdomain wesnoth
+#textdomain wesnoth
 [about]
     images=maps/wesnoth.png
 [/about]