diff --git a/src/or/control.c b/src/or/control.c
index ab1397cefc..949ae15848 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -1152,7 +1152,7 @@ handle_control_signal(control_connection_t *conn, uint32_t len,
     if (sig<0)
       return 0;
   }
-  
+
   if (!control_signal_check(sig)) {
     if (STATE_IS_V0(conn->_base.state))
       send_control0_error(conn, ERR_SYNTAX, "Unrecognized signal number.");