1 files changed, 1 insertions, 0 deletions
diff --git a/refclock.h b/refclock.h
index 7947b62..40c852d 100644
--- a/refclock.h
+++ b/refclock.h
@@ -68,6 +68,7 @@ extern void RCL_Finalise(void);
 extern int RCL_AddRefclock(RefclockParameters *params);
 extern void RCL_StartRefclocks(void);
 extern void RCL_ReportSource(RPT_SourceReport *report, struct timespec *now);
+extern int RCL_ModifyOffset(uint32_t ref_id, double offset);
 
 /* functions used by drivers */
 extern void RCL_SetDriverData(RCL_Instance instance, void *data);