diff --git a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
index b31f5bb4f..421f957f4 100644
--- a/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
+++ b/smack-extensions/src/main/java/org/jivesoftware/smackx/muc/RoomInfo.java
@@ -207,7 +207,8 @@ public class RoomInfo {
 
             FormField subjectmodField = form.getField("muc#roominfo_subjectmod");
             if (subjectmodField != null && !subjectmodField.getValues().isEmpty()) {
-                subjectmod = Boolean.valueOf(subjectmodField.getFirstValue());
+                String firstValue = subjectmodField.getFirstValue();
+                subjectmod = ("true".equals(firstValue) || "1".equals(firstValue));
             }
 
             FormField urlField = form.getField("muc#roominfo_logs");