diff --git a/res/res_calendar.c b/res/res_calendar.c
index 9b93aa9653..7d5721b10c 100644
--- a/res/res_calendar.c
+++ b/res/res_calendar.c
@@ -1171,6 +1171,7 @@ static int calendar_query_result_exec(struct ast_channel *chan, const char *cmd,
 	struct eventlist *events;
 	struct evententry *entry;
 	int row = 1;
+	size_t listlen = 0;
 	AST_DECLARE_APP_ARGS(args,
 		AST_APP_ARG(id);
 		AST_APP_ARG(field);
@@ -1206,6 +1207,15 @@ static int calendar_query_result_exec(struct ast_channel *chan, const char *cmd,
 		row = atoi(args.row);
 	}
 
+	AST_LIST_TRAVERSE(events, entry, list) {
+		listlen++;
+	}
+
+	if (!strcasecmp(args.field, "getnum")) {
+		snprintf(buf, len, "%zu", listlen);
+		return 0;
+	}
+
 	AST_LIST_TRAVERSE(events, entry, list) {
 		if (--row) {
 			continue;