diff --git a/ObjectiveCExample/ObjectiveCExampleTests/SSZipArchiveTests.m b/ObjectiveCExample/ObjectiveCExampleTests/SSZipArchiveTests.m
index 53bd8b6..21ad087 100644
--- a/ObjectiveCExample/ObjectiveCExampleTests/SSZipArchiveTests.m
+++ b/ObjectiveCExample/ObjectiveCExampleTests/SSZipArchiveTests.m
@@ -34,7 +34,7 @@
 {
     _didUnzipArchive = YES;
 }
-- (void)zipArchiveProgressEvent:(NSInteger)loaded total:(NSInteger)total
+- (void)zipArchiveProgressEvent:(unsigned long long)loaded total:(unsigned long long)total
 {
     _loaded = (int)loaded;
     _total = (int)total;
@@ -380,8 +380,8 @@
     NSLog(@"*** zipArchiveDidUnzipFileAtIndex: `%d` totalFiles: `%d` archivePath: `%@` fileInfo:", (int)fileIndex, (int)totalFiles, archivePath);
 }
 
-- (void)zipArchiveProgressEvent:(NSInteger)loaded total:(NSInteger)total {
-    NSLog(@"*** zipArchiveProgressEvent: loaded: `%d` total: `%d`", (int)loaded, (int)total);
+- (void)zipArchiveProgressEvent:(unsigned long long)loaded total:(unsigned long long)total {
+    NSLog(@"*** zipArchiveProgressEvent: loaded: `%llu` total: `%llu`", loaded, total);
     [progressEvents addObject:@(loaded)];
 }
 
diff --git a/SSZipArchive/SSZipArchive.m b/SSZipArchive/SSZipArchive.m
index 0413993..c041ccf 100755
--- a/SSZipArchive/SSZipArchive.m
+++ b/SSZipArchive/SSZipArchive.m
@@ -128,7 +128,7 @@
         [delegate zipArchiveWillUnzipArchiveAtPath:path zipInfo:globalInfo];
     }
     if ([delegate respondsToSelector:@selector(zipArchiveProgressEvent:total:)]) {
-        [delegate zipArchiveProgressEvent:(NSInteger)currentPosition total:(NSInteger)fileSize];
+        [delegate zipArchiveProgressEvent:currentPosition total:fileSize];
     }
     
     NSInteger currentFileNumber = 0;