diff --git a/src/Tasks/GenerateResource.cs b/src/Tasks/GenerateResource.cs
index 0120745f6e3..478f632977c 100644
--- a/src/Tasks/GenerateResource.cs
+++ b/src/Tasks/GenerateResource.cs
@@ -3874,7 +3874,7 @@ internal sealed class LineNumberStreamReader : StreamReader
             private int _col;
 
             internal LineNumberStreamReader(String fileName, Encoding encoding, bool detectEncoding)
-                : base(File.Open(fileName, FileMode.Open, FileAccess.Read), encoding, detectEncoding)
+                : base(File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.Read), encoding, detectEncoding)
             {
                 _lineNumber = 1;
                 _col = 0;