diff -urN less-358/main.c less-358_/main.c
--- less-358/main.c	Sat Jul  8 20:26:46 2000
+++ less-358_/main.c	Mon Nov 27 08:28:03 2000
@@ -141,7 +141,7 @@
 	}
 	editproto = lgetenv("LESSEDIT");
 	if (editproto == NULL || *editproto == '\0')
-		editproto = "%E ?lm+%lm. %f";
+		editproto = "%E ?lm+%lm. '%f'";
 #endif
 
 	/*