diff --git a/src/misc/macroedit.cxx b/src/misc/macroedit.cxx
index a14100a0..bb996a1b 100644
--- a/src/misc/macroedit.cxx
+++ b/src/misc/macroedit.cxx
@@ -164,7 +164,7 @@ void loadBrowser(Fl_Widget *widget) {
 	w->add(_("<TUNE:NN>\ttune signal for NN sec"));
 	w->add(_("<WAIT:NN>\tdelay xmt for NN sec"));
 	w->add(_("<REPEAT>\trepeat macro continuously"));
-	w->add(_("<SKED:hhmm[:YYYYDDMM]>\tschedule execution"));
+	w->add(_("<SKED:hhmm[ss][:YYYYMMDD]>\tschedule execution"));
 
 	w->add(LINE_SEP);
 	w->add(_("<TXATTEN:nn.n>\t set xmt attenuator"));
diff --git a/src/misc/macros.cxx b/src/misc/macros.cxx
index 217eebfa..cbb8ca46 100644
--- a/src/misc/macros.cxx
+++ b/src/misc/macros.cxx
@@ -2167,6 +2167,7 @@ static void pSKED(std::string &s, size_t &i, size_t endbracket)
 		exec_time = data.substr(0, p);
 		exec_date = data.substr(p+1);
 	}
+	if (exec_time.length() == 4) exec_time.append("00");
 	timed_exec = true;
 	s.replace(i, endbracket - i + 1, "");
 }