diff --git a/doc/lispref/minibuf.texi b/doc/lispref/minibuf.texi
index 114e5d38a80..a4916ecda30 100644
--- a/doc/lispref/minibuf.texi
+++ b/doc/lispref/minibuf.texi
@@ -2245,7 +2245,7 @@ Here is an example:
 
 @smallexample
 @group
-(yes-or-no-p "Do you really want to remove everything?")
+(yes-or-no-p "Do you really want to remove everything? ")
 
 ;; @r{After evaluation of the preceding expression,}
 ;;   @r{the following prompt appears,}