diff --git a/plat/xilinx/zynqmp/include/custom_svc.h b/plat/xilinx/zynqmp/include/custom_svc.h
index ef0eb67..7ccde24 100644
--- a/plat/xilinx/zynqmp/include/custom_svc.h
+++ b/plat/xilinx/zynqmp/include/custom_svc.h
@@ -15,5 +15,6 @@
 
 void custom_early_setup(void);
 void custom_mmap_add(void);
+void custom_runtime_setup(void);
 
 #endif /* CUSTOM_SVC_H */