diff --git a/lib/librte_eal/common/eal_common_log.c b/lib/librte_eal/common/eal_common_log.c
index 1362109..5395078 100644
--- a/lib/librte_eal/common/eal_common_log.c
+++ b/lib/librte_eal/common/eal_common_log.c
@@ -204,7 +204,7 @@ rte_log_add_in_history(const char *buf, size_t size)
 
 	/* add in history */
 	memcpy(hist_buf->buf, buf, size);
-	hist_buf->buf[LOG_ELT_SIZE-1] = '\0';
+	hist_buf->buf[LOG_ELT_SIZE-1- sizeof(*hist_buf)] = '\0';
 	hist_buf->size = size;
 	STAILQ_INSERT_TAIL(&log_history, hist_buf, next);
 	rte_spinlock_unlock(&log_list_lock);