diff --git a/Code/Network/RKObjectManager.m b/Code/Network/RKObjectManager.m
index ec36b1fc..fc17540d 100644
--- a/Code/Network/RKObjectManager.m
+++ b/Code/Network/RKObjectManager.m
@@ -533,8 +533,7 @@ static NSString *RKMIMETypeFromAFHTTPClientParameterEncoding(AFHTTPClientParamet
         if ([object isKindOfClass:[NSManagedObject class]]) {
             static NSPredicate *temporaryObjectsPredicate = nil;
             if (! temporaryObjectsPredicate) temporaryObjectsPredicate = [NSPredicate predicateWithFormat:@"objectID.isTemporaryID == YES"];
-            NSSet *potentiallyTemporaryObjects = (object && [[object objectID] isTemporaryID]) ? [[managedObjectContext insertedObjects] setByAddingObject:object] : [managedObjectContext insertedObjects];
-            NSSet *temporaryObjects = [potentiallyTemporaryObjects filteredSetUsingPredicate:temporaryObjectsPredicate];
+            NSSet *temporaryObjects = [[managedObjectContext insertedObjects] filteredSetUsingPredicate:temporaryObjectsPredicate];
             if ([temporaryObjects count]) {
                 RKLogInfo(@"Asked to perform object request for NSManagedObject with temporary object IDs: Obtaining permanent ID before proceeding.");
                 __block BOOL _blockSuccess;