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-rw-r--r--lib/libc/string/strerror.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c
index 890ed21..57d253d 100644
--- a/lib/libc/string/strerror.c
+++ b/lib/libc/string/strerror.c
@@ -87,7 +87,7 @@ strerror_r(int errnum, char *strerrbuf, size_t buflen)
catd = catopen("libc", NL_CAT_LOCALE);
#endif
- if (errnum < 1 || errnum >= sys_nerr) {
+ if (errnum < 0 || errnum >= sys_nerr) {
errstr(errnum,
#if defined(NLS)
catgets(catd, 1, 0xffff, UPREFIX),
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