diff --git a/data/tools/Makefile b/data/tools/Makefile
index bf62c4b1fa28..3dd4f01d8ddc 100644
--- a/data/tools/Makefile
+++ b/data/tools/Makefile
@@ -80,7 +80,7 @@ unchecked:
 
 # Reindent the mainline content
 reindent:
-	@./wmlindent --exclude=../../data/languages --exclude=../../data/gui $(DATA)
+	@./wmlindent --exclude=../../data/languages --exclude=../../data/gui --exclude=../../data/test $(DATA)
 
 # Extract a table of editor keybindings from the editor theme definition
 editor_bindings: