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-rw-r--r--src/ex_cmds.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 637c8a07..4650a4e8 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -6856,7 +6856,8 @@ helptags_one(dir, ext, tagfname, add_help_tags)
/*
* Sort the tags.
*/
- sort_strings((char_u **)ga.ga_data, ga.ga_len);
+ if (ga.ga_data != NULL)
+ sort_strings((char_u **)ga.ga_data, ga.ga_len);
/*
* Check for duplicates.