diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 387f9a1..d7f7808 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1993,10 +1993,10 @@
 
 Some examples: >
 
-	abstract class Person 
+	abstract class Person
 	    static const prefix = 'xxx'
 	    var name: string
-	    
+
 	    def constructor(name: string)
 		this.name = name
 	    enddef