diff --git a/docs/plantuml/sdei_explicit_dispatch.puml b/docs/plantuml/sdei_explicit_dispatch.puml
index 51214f5..c80fcd1 100644
--- a/docs/plantuml/sdei_explicit_dispatch.puml
+++ b/docs/plantuml/sdei_explicit_dispatch.puml
@@ -9,7 +9,7 @@
 autonumber "<b>[#]</b>"
 participant "SDEI client" as EL2
 participant EL3
-participant SEL1
+participant "Secure Partition" as SP
 
 activate EL2
 EL2->EL3: **SDEI_EVENT_REGISTER**(ev, handler, ...)
@@ -24,11 +24,11 @@
 EL3<--]: **CRITICAL EVENT**
 activate EL3 #red
 note over EL3: Critical event triage
-EL3->SEL1: dispatch
-activate SEL1 #salmon
-note over SEL1: Critical event handling
-SEL1->EL3: done
-deactivate SEL1
+EL3->SP: dispatch
+activate SP #salmon
+note over SP: Critical event handling
+SP->EL3: done
+deactivate SP
 EL3-->EL3: sdei_dispatch_event(ev)
 note over EL3: Prepare SDEI dispatch
 EL3->EL2: dispatch