Spaces vs. tabs.
diff --git a/Tools/README b/Tools/README
index 97b3823..6e0276c 100644
--- a/Tools/README
+++ b/Tools/README
@@ -9,7 +9,7 @@
 
 bgen		Generate complete extension modules from a
 		description.  Still under development!
-                WARNING: bgen has been removed in 3.0
+		WARNING: bgen has been removed in 3.0.
 
 compiler	Tools used to maintain the compiler package in the
 		standard library.