diff --git a/win/tools/autopatch/autopatch.py b/win/tools/autopatch/autopatch.py
index 6542b0a..7f02b3d 100755
--- a/win/tools/autopatch/autopatch.py
+++ b/win/tools/autopatch/autopatch.py
@@ -33,8 +33,8 @@ def parse_args():
     parser.add_argument("-T", "--target",
                         nargs="+",
                         default=[
-                            "Display.Driver/nvencodeapi64.dl_",
-                            "Display.Driver/nvencodeapi.dl_",
+                            "Display.Driver/nvencodeapi64.dll",
+                            "Display.Driver/nvencodeapi.dll",
                         ],
                         help="target location(s) in archive")
     parser.add_argument("-N", "--target-name",
@@ -156,7 +156,8 @@ def make_patch(archive, *,
                                  tmpdir,
                                  arch_tgt,
                                  sevenzip=sevenzip) as tgt:
-                f = expand(tgt, sevenzip=sevenzip)
+                 with open(tgt, 'rb') as fo:
+                    f = fo.read()
     offset = f.find(search)
     if offset == -1:
         raise PatternNotFoundException("Pattern not found.")