Index: src/java/org/quartz/JobDetail.java
===================================================================
--- src/java/org/quartz/JobDetail.java	(revision 811)
+++ src/java/org/quartz/JobDetail.java	(working copy)
@@ -492,7 +492,7 @@
     }
 
     public boolean equals(Object obj) {
-        if (!(obj instanceof Trigger)) {
+        if (!(obj instanceof JobDetail)) {
             return false;
         }