diff --git a/sys/net/application_layer/telnet/telnet_server.c b/sys/net/application_layer/telnet/telnet_server.c
index 6ab40bb677a41..6512c8b2931a7 100644
--- a/sys/net/application_layer/telnet/telnet_server.c
+++ b/sys/net/application_layer/telnet/telnet_server.c
@@ -276,7 +276,8 @@ static void *telnet_thread(void *arg)
 write:
                 if (IS_USED(MODULE_STDIO_TELNET)) {
                     isrpipe_write_one(&stdin_isrpipe, c);
-                } else {
+                }
+                else {
                     pipe_write(&_stdin_pipe, &c, 1);
                 }
             }