diff --git a/Zip.xcodeproj/project.xcworkspace/xcshareddata/Zip.xcscmblueprint b/Zip.xcodeproj/project.xcworkspace/xcshareddata/Zip.xcscmblueprint
index 05428776ac975b5b019615ed1803706ed91676d0..0b4f0601b4ab6655a53945f681d7c7211fc635a6 100644
--- a/Zip.xcodeproj/project.xcworkspace/xcshareddata/Zip.xcscmblueprint
+++ b/Zip.xcodeproj/project.xcworkspace/xcshareddata/Zip.xcscmblueprint
@@ -10,7 +10,7 @@
   "DVTSourceControlWorkspaceBlueprintIdentifierKey" : "F3707899-72AE-49DA-9BDD-5CB0B64CF03A",
   "DVTSourceControlWorkspaceBlueprintWorkingCopyPathsKey" : {
     "8DA5B175D3FDB92A3B3CCBD4109A734F1316A3DD" : "Zip\/Zip\/minizip\/",
-    "3DD768C8AB2D6A2647C9EF99992D3CC5820E77C4" : "Zip-swift3\/"
+    "3DD768C8AB2D6A2647C9EF99992D3CC5820E77C4" : "Zip\/"
   },
   "DVTSourceControlWorkspaceBlueprintNameKey" : "Zip",
   "DVTSourceControlWorkspaceBlueprintVersion" : 204,
diff --git a/Zip/QuickZip.swift b/Zip/QuickZip.swift
index 02ba68c921c014424921ac719ca652ff0a2f5b49..a9d703fd67eabcea6b6072b739e0a336043941ff 100644
--- a/Zip/QuickZip.swift
+++ b/Zip/QuickZip.swift
@@ -37,7 +37,7 @@ extension Zip {
      
      - returns: NSURL of the destination folder.
      */
-    public class func quickUnzipFile(_ path: URL, progress: ((progress: Double) -> ())?) throws -> URL {
+    public class func quickUnzipFile(_ path: URL, progress: ((_ progress: Double) -> ())?) throws -> URL {
         let fileManager = FileManager.default
 
         let fileExtension = path.pathExtension
@@ -85,10 +85,10 @@ extension Zip {
      
      - returns: NSURL of the destination folder.
      */
-    public class func quickZipFiles(_ paths: [URL], fileName: String, progress: ((progress: Double) -> ())?) throws -> URL {
+    public class func quickZipFiles(_ paths: [URL], fileName: String, progress: ((_ progress: Double) -> ())?) throws -> URL {
         let fileManager = FileManager.default
         let documentsUrl = fileManager.urls(for: .documentDirectory, in: .userDomainMask)[0] as URL
-        let destinationUrl = try! documentsUrl.appendingPathComponent("\(fileName).zip")
+        let destinationUrl = documentsUrl.appendingPathComponent("\(fileName).zip")
         try self.zipFiles(paths, zipFilePath: destinationUrl, password: nil, progress: progress)
         return destinationUrl
     }
diff --git a/Zip/Zip.swift b/Zip/Zip.swift
index 0097da9ae74d3d56eaf0c307da1239a338ff82e0..cd3a395077743eb210db29c117aae10635f753bc 100644
--- a/Zip/Zip.swift
+++ b/Zip/Zip.swift
@@ -62,7 +62,7 @@ public class Zip {
      - notes: Supports implicit progress composition
      */
     
-    public class func unzipFile(_ zipFilePath: URL, destination: URL, overwrite: Bool, password: String?, progress: ((progress: Double) -> ())?) throws {
+    public class func unzipFile(_ zipFilePath: URL, destination: URL, overwrite: Bool, password: String?, progress: ((_ progress: Double) -> ())?) throws {
         
         // File manager
         let fileManager = FileManager.default
@@ -112,7 +112,7 @@ public class Zip {
                 throw ZipError.unzipFail
             }
             var fileInfo = unz_file_info64()
-            memset(&fileInfo, 0, sizeof(unz_file_info.self))
+            memset(&fileInfo, 0, MemoryLayout<unz_file_info>.size)
             ret = unzGetCurrentFileInfo64(zip, &fileInfo, nil, 0, nil, 0, nil, 0)
             if ret != UNZ_OK {
                 unzCloseCurrentFile(zip)
@@ -179,7 +179,7 @@ public class Zip {
             
             // Update progress handler
             if let progressHandler = progress{
-                progressHandler(progress: (currentPosition/totalSize))
+                progressHandler((currentPosition/totalSize))
             }
             
             progressTracker.completedUnitCount = Int64(currentPosition)
@@ -188,7 +188,7 @@ public class Zip {
         
         // Completed. Update progress handler.
         if let progressHandler = progress{
-            progressHandler(progress: 1.0)
+            progressHandler(1.0)
         }
         
         progressTracker.completedUnitCount = Int64(totalSize)
@@ -209,7 +209,7 @@ public class Zip {
      
      - notes: Supports implicit progress composition
      */
-    public class func zipFiles(_ paths: [URL], zipFilePath: URL, password: String?, progress: ((progress: Double) -> ())?) throws {
+    public class func zipFiles(_ paths: [URL], zipFilePath: URL, password: String?, progress: ((_ progress: Double) -> ())?) throws {
         
         // File manager
         let fileManager = FileManager.default
@@ -291,7 +291,7 @@ public class Zip {
                 
                 // Update progress handler
                 if let progressHandler = progress{
-                    progressHandler(progress: (currentPosition/totalSize))
+                    progressHandler((currentPosition/totalSize))
                 }
                 
                 progressTracker.completedUnitCount = Int64(currentPosition)
@@ -305,7 +305,7 @@ public class Zip {
         
         // Completed. Update progress handler.
         if let progressHandler = progress{
-            progressHandler(progress: 1.0)
+            progressHandler(1.0)
         }
         
         progressTracker.completedUnitCount = Int64(totalSize)