diff --git a/services/std_svc/sdei/sdei_main.c b/services/std_svc/sdei/sdei_main.c
index c414bee..4fe990a 100644
--- a/services/std_svc/sdei/sdei_main.c
+++ b/services/std_svc/sdei/sdei_main.c
@@ -993,7 +993,7 @@
 	case SDEI_PE_UNMASK:
 		SDEI_LOG("> UNMASK:%lx\n", read_mpidr_el1());
 		sdei_pe_unmask();
-		SDEI_LOG("< UNMASK:%ld\n", 0);
+		SDEI_LOG("< UNMASK:%d\n", 0);
 		SMC_RET1(handle, 0);
 		break;