diff --git a/CoreStore/Saving and Processing/AsynchronousDataTransaction.swift b/CoreStore/Saving and Processing/AsynchronousDataTransaction.swift
index 8bcabed..cddd47f 100644
--- a/CoreStore/Saving and Processing/AsynchronousDataTransaction.swift	
+++ b/CoreStore/Saving and Processing/AsynchronousDataTransaction.swift	
@@ -179,7 +179,7 @@ public final class AsynchronousDataTransaction: BaseDataTransaction {
     
     - parameter objects: the `NSManagedObject`s type to be deleted
     */
-    public override func delete<S: SequenceType where S.Generator.Element == NSManagedObject>(objects: S) {
+    public override func delete<S: SequenceType where S.Generator.Element: NSManagedObject>(objects: S) {
         
         CoreStore.assert(
             !self.isCommitted,
diff --git a/CoreStore/Saving and Processing/BaseDataTransaction.swift b/CoreStore/Saving and Processing/BaseDataTransaction.swift
index f5269d6..addc74e 100644
--- a/CoreStore/Saving and Processing/BaseDataTransaction.swift	
+++ b/CoreStore/Saving and Processing/BaseDataTransaction.swift	
@@ -175,7 +175,7 @@ public /*abstract*/ class BaseDataTransaction {
     
     - parameter objects: the `NSManagedObject`s to be deleted
     */
-    public func delete<S: SequenceType where S.Generator.Element == NSManagedObject>(objects: S) {
+    public func delete<S: SequenceType where S.Generator.Element: NSManagedObject>(objects: S) {
         
         CoreStore.assert(
             self.bypassesQueueing || self.transactionQueue.isCurrentExecutionContext(),
diff --git a/CoreStore/Saving and Processing/SynchronousDataTransaction.swift b/CoreStore/Saving and Processing/SynchronousDataTransaction.swift
index 16023c0..2733320 100644
--- a/CoreStore/Saving and Processing/SynchronousDataTransaction.swift	
+++ b/CoreStore/Saving and Processing/SynchronousDataTransaction.swift	
@@ -169,7 +169,7 @@ public final class SynchronousDataTransaction: BaseDataTransaction {
     
     - parameter objects: the `NSManagedObject`s to be deleted
     */
-    public override func delete<S: SequenceType where S.Generator.Element == NSManagedObject>(objects: S) {
+    public override func delete<S: SequenceType where S.Generator.Element: NSManagedObject>(objects: S) {
         
         CoreStore.assert(
             !self.isCommitted,