1 files changed, 3 insertions, 1 deletions

diff --git a/plugins/check_ntp_time.c b/plugins/check_ntp_time.c
index d6cf4191..e344f8b7 100644
--- a/plugins/check_ntp_time.c
+++ b/plugins/check_ntp_time.c
@@ -621,7 +621,7 @@ void print_help(void){
         printf ("    %s\n", _("Offset to result in warning status (seconds)"));
         printf (" %s\n", "-c, --critical=THRESHOLD");
         printf ("    %s\n", _("Offset to result in critical status (seconds)"));
-        printf (" %s\n", "-o, --time_offset=");
+        printf (" %s\n", "-o, --time_offset=INTEGER");
         printf ("    %s\n", _("Expected offset of the ntp server relative to local server (seconds)"));
         printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
         printf (UT_VERBOSE);
@@ -635,6 +635,8 @@ void print_help(void){
         printf("%s\n", _("Notes:"));
         printf(" %s\n", _("If you'd rather want to monitor an NTP server, please use"));
         printf(" %s\n", _("check_ntp_peer."));
+        printf(" %s\n", _("--time-offset is usefull for compensating for servers with known"));
+        printf(" %s\n", _("and expected clock skew."));
         printf("\n");
         printf(UT_THRESHOLDS_NOTES);