diff --git a/clients/lcdproc/chrono.h b/clients/lcdproc/chrono.h
index e69de29..2732c17 100644
--- a/clients/lcdproc/chrono.h
+++ b/clients/lcdproc/chrono.h
@@ -0,0 +1,10 @@
+#ifndef CHRONO_H
+#define CHRONO_H
+
+int clock_screen(int rep, int display, int *flags_ptr);
+int uptime_screen(int rep, int display, int *flags_ptr);
+int time_screen(int rep, int display, int *flags_ptr);
+int big_clock_screen(int rep, int display, int *flags_ptr);
+int mini_clock_screen(int rep, int display, int *flags_ptr);
+
+#endif