diff --git a/src/alarm_grammar.h b/src/alarm_grammar.h
index 1c5e8e55ceb8aa8b6e212c4a27f7fb1951d8ec84..3bc03028efcf9b7610bb0d4e108da8fbca35e0bf 100644
--- a/src/alarm_grammar.h
+++ b/src/alarm_grammar.h
@@ -90,6 +90,7 @@
 #define EXCEPTION_KEY		"exception"
 #define AUDIBLE_KEY			"audible"
 #define FREQ_COUNTER_KEY	"freq_counter"
+#define ALARM_TIME_KEY		"alarm_time"
 #define KEY(S_VAL)  		S_VAL "="
 
 #define SEP					";"