diff --git a/AltBackup/BackupController.swift b/AltBackup/BackupController.swift
index 4b2379ac..93435e9c 100644
--- a/AltBackup/BackupController.swift
+++ b/AltBackup/BackupController.swift
@@ -38,7 +38,7 @@ struct BackupError: ALTLocalizedError
     let sourceFile: String
     let sourceFileLine: Int
     
-    var errorFailure: String?
+    var failure: String?
 
     var failureReason: String? {
         switch self.code
@@ -60,7 +60,7 @@ struct BackupError: ALTLocalizedError
     var errorUserInfo: [String : Any] {
         let userInfo: [String: Any?] = [NSLocalizedDescriptionKey: self.errorDescription,
                                         NSLocalizedFailureReasonErrorKey: self.failureReason,
-                                        NSLocalizedFailureErrorKey: self.errorFailure,
+                                        NSLocalizedFailureErrorKey: self.failure,
                                         ErrorUserInfoKey.sourceFile: self.sourceFile,
                                         ErrorUserInfoKey.sourceFileLine: self.sourceFileLine]
         return userInfo.compactMapValues { $0 }
@@ -69,7 +69,7 @@ struct BackupError: ALTLocalizedError
     init(_ code: Code, description: String? = nil, file: String = #file, line: Int = #line)
     {
         self.code = code
-        self.errorFailure = description
+        self.failure = description
         self.sourceFile = file
         self.sourceFileLine = line
     }
diff --git a/AltStore/Extensions/NSError+AltStore.swift b/AltStore/Extensions/NSError+AltStore.swift
index 847d5a87..ccb01b7e 100644
--- a/AltStore/Extensions/NSError+AltStore.swift
+++ b/AltStore/Extensions/NSError+AltStore.swift
@@ -46,7 +46,7 @@ extension NSError
 
 protocol ALTLocalizedError: LocalizedError, CustomNSError
 {
-    var errorFailure: String? { get }
+    var failure: String? { get }
 }
 
 extension ALTLocalizedError
@@ -54,7 +54,7 @@ extension ALTLocalizedError
     var errorUserInfo: [String : Any] {
         let userInfo = [NSLocalizedDescriptionKey: self.errorDescription,
                         NSLocalizedFailureReasonErrorKey: self.failureReason,
-                        NSLocalizedFailureErrorKey: self.errorFailure].compactMapValues { $0 }
+                        NSLocalizedFailureErrorKey: self.failure].compactMapValues { $0 }
         return userInfo
     }
 }
diff --git a/AltStore/Operations/VerifyAppOperation.swift b/AltStore/Operations/VerifyAppOperation.swift
index 701adfef..f451db2d 100644
--- a/AltStore/Operations/VerifyAppOperation.swift
+++ b/AltStore/Operations/VerifyAppOperation.swift
@@ -24,7 +24,7 @@ enum VerificationError: ALTLocalizedError
         }
     }
     
-    var errorFailure: String? {
+    var failure: String? {
         return String(format: NSLocalizedString("“%@” could not be installed.", comment: ""), app.name)
     }