diff --git a/services/std_svc/sdei/sdei_intr_mgmt.c b/services/std_svc/sdei/sdei_intr_mgmt.c
index 6acb129..264ab44 100644
--- a/services/std_svc/sdei/sdei_intr_mgmt.c
+++ b/services/std_svc/sdei/sdei_intr_mgmt.c
@@ -505,7 +505,7 @@
 	 * the event handling completed, EOI the corresponding
 	 * interrupt.
 	 */
-	if ((map->ev_num != SDEI_EVENT_0) && is_map_bound(map)) {
+	if ((map->ev_num != SDEI_EVENT_0) && !is_map_bound(map)) {
 		ERROR("Invalid SDEI mapping: ev=%u\n", map->ev_num);
 		panic();
 	}