diff --git a/src/alert.h b/src/alert.h
index 3fe8679..cb26eff 100644
--- a/src/alert.h
+++ b/src/alert.h
@@ -29,5 +29,6 @@ enum alert_t
     ALERT_END,
 };
 
+enum alert_t alert_option_parse(const char *arg);
 void alert_connect(void);
 void alert_disconnect(void);
diff --git a/src/options.h b/src/options.h
index f7a28e3..22ec236 100644
--- a/src/options.h
+++ b/src/options.h
@@ -75,4 +75,3 @@ void options_parse(int argc, char *argv[]);
 void options_parse_final(int argc, char *argv[]);
 
 void line_pulse_duration_option_parse(const char *arg);
-enum alert_t alert_option_parse(const char *arg);