diff --git a/src/libraries/System.IO.Compression.ZipFile/src/System/IO/Compression/ZipFileExtensions.ZipArchive.Create.cs b/src/libraries/System.IO.Compression.ZipFile/src/System/IO/Compression/ZipFileExtensions.ZipArchive.Create.cs
index c909d818123009..fa6c3ba300b2c8 100644
--- a/src/libraries/System.IO.Compression.ZipFile/src/System/IO/Compression/ZipFileExtensions.ZipArchive.Create.cs
+++ b/src/libraries/System.IO.Compression.ZipFile/src/System/IO/Compression/ZipFileExtensions.ZipArchive.Create.cs
@@ -89,7 +89,7 @@ internal static ZipArchiveEntry DoCreateEntryFromFile(this ZipArchive destinatio
 
             // Argument checking gets passed down to FileStream's ctor and CreateEntry
 
-            using (FileStream fs = new FileStream(sourceFileName, FileMode.Open, FileAccess.Read, FileShare.Read, bufferSize: 0x1000, useAsync: false))
+            using (FileStream fs = new FileStream(sourceFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, bufferSize: 0x1000, useAsync: false))
             {
                 ZipArchiveEntry entry = compressionLevel.HasValue
                                     ? destination.CreateEntry(entryName, compressionLevel.Value)