diff --git a/plat/intel/soc/common/socfpga_sip_svc.c b/plat/intel/soc/common/socfpga_sip_svc.c
index a20e61c..79f743f 100644
--- a/plat/intel/soc/common/socfpga_sip_svc.c
+++ b/plat/intel/soc/common/socfpga_sip_svc.c
@@ -611,7 +611,10 @@
 	*ret_size = resp_len * MBOX_WORD_BYTE;
 	flush_dcache_range(addr, *ret_size);
 
-	if (status != MBOX_RET_OK) {
+	if (status == MBOX_RET_SDOS_DECRYPTION_ERROR_102 ||
+		status == MBOX_RET_SDOS_DECRYPTION_ERROR_103) {
+		*mbox_error = -status;
+	} else if (status != MBOX_RET_OK) {
 		*mbox_error = -status;
 		return INTEL_SIP_SMC_STATUS_ERROR;
 	}