1 files changed, 2 insertions, 2 deletions

diff --git a/plugins/check_by_ssh.c b/plugins/check_by_ssh.c
index 34e67274..0cffaeb2 100644
--- a/plugins/check_by_ssh.c
+++ b/plugins/check_by_ssh.c
@@ -249,12 +249,12 @@ process_arguments (int argc, char **argv)
                         passive = TRUE;
                         break;
                 case 's':                                                                       /* description of service to check */
-                        service = realloc (service, ++services);
+                        service = realloc (service, (++services) * sizeof(char *));
                         p1 = optarg;
                         while (p2 = index (p1, ':')) {
                                 *p2 = '\0';
                                 asprintf (&service[services-1], "%s", p1);
-                                service = realloc (service, ++services);
+                                service = realloc (service, (++services) * sizeof(char *));
                                 p1 = p2 + 1;
                         }
                         asprintf (&service[services-1], "%s", p1);