diff --git a/include/lib/timer.h b/include/lib/timer.h
index 0bfff01..ff57cbd 100644
--- a/include/lib/timer.h
+++ b/include/lib/timer.h
@@ -32,6 +32,8 @@
  */
 int tftf_initialise_timer(void);
 
+void tftf_initialise_timer_secondary_core(void);
+
 /*
  * Requests the timer framework to send an interrupt after milli_secs.
  * The interrupt is sent to the calling core of this api. The actual