diff --git a/board/sandbox/sandbox.c b/board/sandbox/sandbox.c
index 397e756..9ca1eca 100644
--- a/board/sandbox/sandbox.c
+++ b/board/sandbox/sandbox.c
@@ -31,7 +31,7 @@
 /* system timer offset in ms */
 static unsigned long sandbox_timer_offset;
 
-void sandbox_timer_add_offset(unsigned long offset)
+void timer_test_add_offset(unsigned long offset)
 {
 	sandbox_timer_offset += offset;
 }