diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java b/spring-webflux/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
index 0ffc161e4f3..5bd79846133 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/result/view/script/KotlinScriptTemplateTests.java
@@ -39,7 +39,7 @@ import static org.junit.Assert.*;
  *
  * @author Sebastien Deleuze
  */
-@Ignore  // for JDK 9 compatibility
+@Ignore  // for JDK 9 compatibility, see KT-18833
 public class KotlinScriptTemplateTests {
 
 	@Test
diff --git a/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java b/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
index c0b2d209f27..59900db5b54 100644
--- a/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
+++ b/spring-webmvc/src/test/java/org/springframework/web/servlet/view/script/KotlinScriptTemplateTests.java
@@ -42,7 +42,7 @@ import static org.mockito.Mockito.*;
  *
  * @author Sebastien Deleuze
  */
-@Ignore  // for JDK 9 compatibility
+@Ignore  // for JDK 9 compatibility, see KT-18833
 public class KotlinScriptTemplateTests {
 
 	private WebApplicationContext webAppContext;