diff --git a/Code/Three20/RKObjectTTTableViewDataSource.m b/Code/Three20/RKObjectTTTableViewDataSource.m
index 43abee5e..87e6113a 100644
--- a/Code/Three20/RKObjectTTTableViewDataSource.m
+++ b/Code/Three20/RKObjectTTTableViewDataSource.m
@@ -37,6 +37,7 @@
 
 - (void)dealloc {
     [_objectToTableCellMappings release];
+    [_objectClassToTableItemMappings release];
     
     [super dealloc];
 }