diff --git a/plat/imx/common/include/imx_sip_svc.h b/plat/imx/common/include/imx_sip_svc.h
index 86523da..e154530 100644
--- a/plat/imx/common/include/imx_sip_svc.h
+++ b/plat/imx/common/include/imx_sip_svc.h
@@ -104,4 +104,9 @@
 int scmi_handler(uint32_t smc_fid, u_register_t x1, u_register_t x2, u_register_t x3);
 int imx_hifi_xrdc(uint32_t smc_fid);
 
+#if defined(PLAT_imx8ulp)
+int dram_dvfs_handler(uint32_t smc_fid, void *handle,
+	u_register_t x1, u_register_t x2, u_register_t x3);
+#endif
+
 #endif /* __IMX_SIP_SVC_H__ */