1 files changed, 11 insertions, 0 deletions

diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index 833cdc0c..d2ebc16d 100644
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
@@ -493,6 +493,17 @@ static check_tcp_config_wrapper process_arguments(int argc, char **argv, check_t
                 usage4(_("No arguments found"));
         }
 
+        /* backwards compatibility */
+        for (int i = 1; i < argc; i++) {
+                if (strcmp("-to", argv[i]) == 0) {
+                        strcpy(argv[i], "-t");
+                } else if (strcmp("-wt", argv[i]) == 0) {
+                        strcpy(argv[i], "-w");
+                } else if (strcmp("-ct", argv[i]) == 0) {
+                        strcpy(argv[i], "-c");
+                }
+        }
+
         if (!is_option(argv[1])) {
                 config.server_address = argv[1];
                 argv[1] = argv[0];