diff --git a/docs/userguide/003_Getting_Started.adoc b/docs/userguide/003_Getting_Started.adoc
index fa95921f04..28e09b0cd8 100644
--- a/docs/userguide/003_Getting_Started.adoc
+++ b/docs/userguide/003_Getting_Started.adoc
@@ -116,7 +116,7 @@ class MyArchitectureTest {
 
     @ArchTest
     fun rule_as_method(classes: JavaClasses) {
-        ArchRule rule = ArchRuleDefinition.noClasses().should()...
+        val rule = ArchRuleDefinition.noClasses().should()...
         rule.check(classes)
     }
 }