diff --git a/signature.py b/signature.py
index ec0419b..fc1a80a 100644
--- a/signature.py
+++ b/signature.py
@@ -66,6 +66,9 @@ def check_sign(cmd, bdata, fname, GNUPG_DIRECTORY, keyserver, windows_hack=False
         gpg_output = p.stderr.read()
         gpg_rcode = p.returncode
 
+        if gpg_rcode != 0 and not windows_hack:
+            return check_sign(cmd, bdata.replace(b'\n', b'\r\n'), fname, GNUPG_DIRECTORY, keyserver, True) # Windows hack
+
         return gpg_status, gpg_output, gpg_rcode