Add single file mode.

1 files changed, 1 insertions, 1 deletions

diff --git a/main.c b/main.c
index c9fa7fd8..a669f290 100644
--- a/main.c
+++ b/main.c
@@ -24,7 +24,7 @@ int main (int argc, char* argv[argc]) {
 	arg args = { .argc = argc, .argv = argv };
 
 	if (arg_shift(&args) == 0) {
-		puts("Please give vdir as first argument");
+		puts("Please give vdir or a vcalendar file as first argument");
 		exit (1);
 	}