diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index c93feb20d74250d71cae4d95b2e3b8e89db78af8..2f2369a458616121ca60bd723b6ce9d618b6c5a9 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -469,6 +469,7 @@ pub const WriteFileError = error{
     SystemResources,
     OperationAborted,
     BrokenPipe,
+    NotOpenForWriting,
     Unexpected,
 };
 
@@ -542,6 +543,7 @@ pub fn WriteFile(
                 .NOT_ENOUGH_QUOTA => return error.SystemResources,
                 .IO_PENDING => unreachable,
                 .BROKEN_PIPE => return error.BrokenPipe,
+                .INVALID_HANDLE => return error.NotOpenForWriting,
                 else => |err| return unexpectedError(err),
             }
         }