diff --git a/changelog.html b/changelog.html
index bf90312ac..21996e0cc 100644
--- a/changelog.html
+++ b/changelog.html
@@ -47,6 +47,7 @@ <h1>
 <p><b>Next Release</b> at some date</p>
 <ul>
     <li>[<a href='https://github.com/igniterealtime/openfire-restAPI-plugin/issues/127'>#127</a>] - AAdd endpoint that allows for more than one MUC room to be created with one request</li>
+    <li>[<a href='https://github.com/igniterealtime/openfire-restAPI-plugin/issues/15'>#15</a>] - Fix group-based affiliations with MUC rooms.</li>
 </ul>
 
 <p><b>1.8.3</b> July 19, 2022</p>
diff --git a/src/java/org/jivesoftware/openfire/plugin/rest/entity/MUCRoomEntity.java b/src/java/org/jivesoftware/openfire/plugin/rest/entity/MUCRoomEntity.java
index 78d07d16e..72bd0f9c0 100644
--- a/src/java/org/jivesoftware/openfire/plugin/rest/entity/MUCRoomEntity.java
+++ b/src/java/org/jivesoftware/openfire/plugin/rest/entity/MUCRoomEntity.java
@@ -294,7 +294,7 @@ public List<String> getMembers() {
     @XmlElementWrapper(name = "memberGroups")
     @XmlElement(name = "memberGroup")
     @JsonProperty(value = "memberGroups")
-    public List<String> getmemberGroups() {
+    public List<String> getMemberGroups() {
         return memberGroups;
     }
 
@@ -316,7 +316,7 @@ public List<String> getOutcasts() {
     @XmlElementWrapper(name = "outcastGroups")
     @XmlElement(name = "outcastGroup")
     @JsonProperty(value = "outcastGroups")
-    public List<String> getoutcastGroups() {
+    public List<String> getOutcastGroups() {
         return outcastGroups;
     }
 
@@ -338,7 +338,7 @@ public List<String> getAdmins() {
     @XmlElementWrapper(name = "adminGroups")
     @XmlElement(name = "adminGroup")
     @JsonProperty(value = "adminGroups")
-    public List<String> getadminGroups() {
+    public List<String> getAdminGroups() {
         return adminGroups;
     }