diff --git a/runtime/doc/print.txt b/runtime/doc/print.txt
index 771a58c..691e2b6 100644
--- a/runtime/doc/print.txt
+++ b/runtime/doc/print.txt
@@ -139,28 +139,28 @@
 The default for non MS-Windows or VMS systems is to simply use "lpr" to print
 the file: >
 
-    system('lpr' . (&printdevice == '' ? '' : ' -P' . &printdevice)
-	. ' ' . v:fname_in) . delete(v:fname_in) + v:shell_error
+    system('lpr' .. (&printdevice == '' ? '' : ' -P' .. &printdevice)
+	.. ' ' .. v:fname_in) .. delete(v:fname_in) + v:shell_error
 
 On MS-Windows machines the default is to copy the file to the currently
 specified printdevice: >
 
-    system('copy' . ' ' . v:fname_in . (&printdevice == ''
-		? ' LPT1:' : (' \"' . &printdevice . '\"')))
-		. delete(v:fname_in)
+    system('copy' .. ' ' .. v:fname_in .. (&printdevice == ''
+		? ' LPT1:' : (' \"' .. &printdevice .. '\"')))
+		.. delete(v:fname_in)
 
 On VMS machines the default is to send the file to either the default or
 currently specified printdevice: >
 
-    system('print' . (&printdevice == '' ? '' : ' /queue=' .
-		&printdevice) . ' ' . v:fname_in) . delete(v:fname_in)
+    system('print' .. (&printdevice == '' ? '' : ' /queue=' ..
+		&printdevice) .. ' ' .. v:fname_in) .. delete(v:fname_in)
 
 If you change this option, using a function is an easy way to avoid having to
 escape all the spaces.  Example: >
 
 	:set printexpr=PrintFile(v:fname_in)
 	:function PrintFile(fname)
-	:  call system("ghostview " . a:fname)
+	:  call system("ghostview " .. a:fname)
 	:  call delete(a:fname)
 	:  return v:shell_error
 	:endfunc