diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 1827fec..e69fbd3 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -6537,8 +6537,7 @@ find_help_tags(
|| (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
&& arg[2] != NUL)))
{
- STRCPY(d, "/\\\\");
- STRCPY(d + 3, arg + 1);
+ vim_snprintf((char *)d, IOSIZE, "/\\\\%s", arg + 1);
/* Check for "/\\_$", should be "/\\_\$" */
if (d[3] == '_' && d[4] == '$')
STRCPY(d + 4, "\\$");