diff --git a/src/Containers/Microsoft.NET.Build.Containers/Layer.cs b/src/Containers/Microsoft.NET.Build.Containers/Layer.cs
index 1cb57628f390..678269df7361 100644
--- a/src/Containers/Microsoft.NET.Build.Containers/Layer.cs
+++ b/src/Containers/Microsoft.NET.Build.Containers/Layer.cs
@@ -191,7 +191,7 @@ static UnixFileMode DetermineFileMode(FileSystemInfo file)
 
                     // On Unix, we can determine the x-bit based on the filesystem permission.
                     // On Windows, we use executable permissions for all entries.
-                    return (OperatingSystem.IsWindows() || ((file.UnixFileMode | UnixFileMode.UserExecute) != 0)) ? executeMode : nonExecuteMode;
+                    return (OperatingSystem.IsWindows() || ((file.UnixFileMode & UnixFileMode.UserExecute) != 0)) ? executeMode : nonExecuteMode;
                 }
             }
         }