diff --git a/docs/src/reference/asciidoc/sm.adoc b/docs/src/reference/asciidoc/sm.adoc
index 6f77ff68..2008d69b 100644
--- a/docs/src/reference/asciidoc/sm.adoc
+++ b/docs/src/reference/asciidoc/sm.adoc
@@ -2081,7 +2081,7 @@ include::samples/DocsTestSampleTests.java[tags=snippetB]
 ----
 
 In below test plan we have two steps, first we check that initial
-state `S1` is indeed set, secondly we send an event `E1` and expect
+state `SI` is indeed set, secondly we send an event `E1` and expect
 one state change to happen and machine to end up into a state `S1`.
 
 [source,java,indent=0]