diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index d06e031..b9c79fc 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -422,7 +422,7 @@
 EX(CMD_helpgrep,	"helpgrep",	ex_helpgrep,
 			EXTRA|NOTRLCOM|NEEDARG),
 EX(CMD_helptags,	"helptags",	ex_helptags,
-			NEEDARG|FILE1|TRLBAR|CMDWIN),
+			NEEDARG|FILES|TRLBAR|CMDWIN),
 EX(CMD_hardcopy,	"hardcopy",	ex_hardcopy,
 			RANGE|COUNT|EXTRA|TRLBAR|DFLALL|BANG),
 EX(CMD_highlight,	"highlight",	ex_highlight,