diff --git a/main.c b/main.c
index de0bada..fb84b05 100644
--- a/main.c
+++ b/main.c
@@ -1069,6 +1069,7 @@ static void comm_in(int fd, short mask, void *data) {
 int main(int argc, char **argv) {
 	swaylock_log_init(LOG_ERROR);
 	initialize_pw_backend(argc, argv);
+	srand(time(NULL));
 
 	enum line_mode line_mode = LM_LINE;
 	state.failed_attempts = 0;