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-rw-r--r--src/expire.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/expire.c b/src/expire.c
index cfa5dff..23ce6ae 100644
--- a/src/expire.c
+++ b/src/expire.c
@@ -76,7 +76,7 @@ size_t exp2txt(time_t expire, char *buffer, size_t buflen)
n = 0;
#define ADD(C,U) \
if (expire >= U) { \
- n += snprintf(&b[n], sizeof b - n, "%lld" #C, (long long)(expire / U)); \
+ n += snprintf(&b[n], sizeof b - (size_t)n, "%lld" #C, (long long)(expire / U)); \
expire %= U; \
}
ADD(y,YEAR)