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-rw-r--r--src/nvim/help.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/nvim/help.c b/src/nvim/help.c
index 46310cb681..8c7c19e7c3 100644
--- a/src/nvim/help.c
+++ b/src/nvim/help.c
@@ -458,7 +458,7 @@ int find_help_tags(const char *arg, int *num_matches, char ***matches, bool keep
// Replace "^x" by "CTRL-X". Don't do this for "^_" to make
// ":help i_^_CTRL-D" work.
// Insert '-' before and after "CTRL-X" when applicable.
- if (*s < ' '
+ if ((uint8_t)(*s) < ' '
|| (*s == '^' && s[1]
&& (ASCII_ISALPHA(s[1]) || vim_strchr("?@[\\]^", (uint8_t)s[1]) != NULL))) {
if (d > IObuff && d[-1] != '_' && d[-1] != '\\') {