diff --git a/headless-services/concourse-language-server/src/test/java/org/springframework/ide/vscode/concourse/ConcourseEditorTest.java b/headless-services/concourse-language-server/src/test/java/org/springframework/ide/vscode/concourse/ConcourseEditorTest.java
index 7ea842d68..542c997cb 100644
--- a/headless-services/concourse-language-server/src/test/java/org/springframework/ide/vscode/concourse/ConcourseEditorTest.java
+++ b/headless-services/concourse-language-server/src/test/java/org/springframework/ide/vscode/concourse/ConcourseEditorTest.java
@@ -1928,7 +1928,8 @@ public class ConcourseEditorTest {
 		assertContextualCompletions(conText,
 				"content_type: json<*>"
 				, //=>
-				"content_type: application/json; charset=utf-8<*>"
+				"content_type: application/json; charset=utf-8<*>",
+				"content_type: application/manifest+json; charset=utf-8<*>"
 		);
 
 		String[] expectedAclCompletions = new String[cannedAcls.length];