diff --git a/runtime/doc/usr_10.txt b/runtime/doc/usr_10.txt
index d579919..7898618 100644
--- a/runtime/doc/usr_10.txt
+++ b/runtime/doc/usr_10.txt
@@ -687,7 +687,7 @@
 lowercase.  This can be shortened to "guu".  "gUgU" is shortened to "gUU" and
 "g~g~" to "g~~".  Example: >
 
-				g~~ 
+				g~~
 <	Some GIRLS have Fun    ---->   sOME girls HAVE fUN ~
 
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