diff --git a/AltStoreCore/Model/AltStore.xcdatamodeld/AltStore 13.xcdatamodel/contents b/AltStoreCore/Model/AltStore.xcdatamodeld/AltStore 13.xcdatamodel/contents
index e99bcc3e..a1866d15 100644
--- a/AltStoreCore/Model/AltStore.xcdatamodeld/AltStore 13.xcdatamodel/contents	
+++ b/AltStoreCore/Model/AltStore.xcdatamodeld/AltStore 13.xcdatamodel/contents	
@@ -27,8 +27,9 @@
         </uniquenessConstraints>
     </entity>
     <entity name="AppPermission" representedClassName="AppPermission" syncable="YES">
-        <attribute name="appBundleID" optional="YES" attributeType="String"/>
+        <attribute name="appBundleID" attributeType="String"/>
         <attribute name="permission" attributeType="String"/>
+        <attribute name="sourceID" attributeType="String"/>
         <attribute name="type" attributeType="String"/>
         <attribute name="usageDescription" attributeType="String"/>
         <relationship name="app" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="StoreApp" inverseName="permissions" inverseEntity="StoreApp"/>
@@ -37,6 +38,7 @@
                 <constraint value="appBundleID"/>
                 <constraint value="permission"/>
                 <constraint value="type"/>
+                <constraint value="sourceID"/>
             </uniquenessConstraint>
         </uniquenessConstraints>
     </entity>
diff --git a/AltStoreCore/Model/AppPermission.swift b/AltStoreCore/Model/AppPermission.swift
index ed23bf7c..612d73c6 100644
--- a/AltStoreCore/Model/AppPermission.swift
+++ b/AltStoreCore/Model/AppPermission.swift
@@ -97,7 +97,8 @@ public class AppPermission: NSManagedObject, Decodable, Fetchable
     @NSManaged @objc(permission) private var _permission: String
     
     // Set by StoreApp.
-    @NSManaged public var appBundleID: String?
+    @NSManaged public var appBundleID: String
+    @NSManaged public var sourceID: String
     
     /* Relationships */
     @NSManaged public internal(set) var app: StoreApp?
diff --git a/AltStoreCore/Model/StoreApp.swift b/AltStoreCore/Model/StoreApp.swift
index c469b484..2b5cf4a2 100644
--- a/AltStoreCore/Model/StoreApp.swift
+++ b/AltStoreCore/Model/StoreApp.swift
@@ -137,6 +137,11 @@ public class StoreApp: NSManagedObject, Decodable, Fetchable
             {
                 version.sourceID = newValue
             }
+            
+            for permission in self.permissions
+            {
+                permission.sourceID = self.sourceIdentifier ?? ""
+            }
         }
     }
     @NSManaged private var primitiveSourceIdentifier: String?