diff --git a/logger.c b/logger.c
index b9243b1..dc304de 100644
--- a/logger.c
+++ b/logger.c
@@ -115,14 +115,14 @@ void logger(int severity, const char *fmt, ...)
           if (log_fp)
           {
                fprintf(log_fp, "%s %s %s[%d.%li]: %s\n", time_buf, hostname,
-                       log_ident, getpid(), pthread_self(), message);
+                       log_ident, getpid(), (unsigned long int) pthread_self(), message);
                fflush(log_fp);
           }
           else if (log_syslog_is_open)
                syslog(severity, "%s", message);
           else
                fprintf(stderr, "%s %s %s[%d.%li]: %s\n", time_buf, hostname,
-                       log_ident, getpid(), pthread_self(), message);
+                       log_ident, getpid(), (unsigned long int) pthread_self(), message);
      }
      va_end(args);
 }
diff --git a/tftpd_pcre.c b/tftpd_pcre.c
index 24b2770..28287f6 100644
--- a/tftpd_pcre.c
+++ b/tftpd_pcre.c
@@ -106,7 +106,7 @@ tftpd_pcre_self_t *tftpd_pcre_open(char *filename)
                logger(LOG_DEBUG,"file: %s line: %d substring: %d value: %s",
                       filename, linecount, subnum, substrlist[subnum]);
           }
-          pcre2_substring_list_free((const PCRE2_UCHAR **)substrlist);
+          pcre2_substring_list_free((PCRE2_UCHAR **)substrlist);
 
           if (matches != 3)
           {