diff --git a/src/main/java/org/kohsuke/github/GHCommentAuthorAssociation.java b/src/main/java/org/kohsuke/github/GHCommentAuthorAssociation.java
index 449970e4d7..b00905ab8f 100644
--- a/src/main/java/org/kohsuke/github/GHCommentAuthorAssociation.java
+++ b/src/main/java/org/kohsuke/github/GHCommentAuthorAssociation.java
@@ -23,6 +23,10 @@ public enum GHCommentAuthorAssociation {
      * Author has not previously committed to the repository.
      */
     FIRST_TIME_CONTRIBUTOR,
+    /**
+     * Author is a placeholder for an unclaimed user.
+     */
+    MANNEQUIN,
     /**
      * Author is a member of the organization that owns the repository.
      */
diff --git a/src/test/java/org/kohsuke/github/EnumTest.java b/src/test/java/org/kohsuke/github/EnumTest.java
index 939c6360e3..ecacb8f331 100644
--- a/src/test/java/org/kohsuke/github/EnumTest.java
+++ b/src/test/java/org/kohsuke/github/EnumTest.java
@@ -22,7 +22,7 @@ public void touchEnums() {
         assertThat(GHCheckRun.Conclusion.values().length, equalTo(9));
         assertThat(GHCheckRun.Status.values().length, equalTo(4));
 
-        assertThat(GHCommentAuthorAssociation.values().length, equalTo(7));
+        assertThat(GHCommentAuthorAssociation.values().length, equalTo(8));
 
         assertThat(GHCommitState.values().length, equalTo(4));