diff --git a/runtime/doc/sign.txt b/runtime/doc/sign.txt
index c698499..1a500a4 100644
--- a/runtime/doc/sign.txt
+++ b/runtime/doc/sign.txt
@@ -629,7 +629,7 @@
 				be placed. For the accepted values, see
 				|line()|.
 		    name	name of the sign to place. See |sign_define()|
-		    		for more information.
+			for more information.
 		    priority	priority of the sign. When multiple signs are
 				placed on a line, the sign with the highest
 				priority is used. If not specified, the