fix variable name

1 files changed, 1 insertions, 1 deletions

diff --git a/clip b/clip
index 880a23b..09e28f4 100755
--- a/clip
+++ b/clip
@@ -40,7 +40,7 @@ def fileno(filelike):
 def secure_open(path, mode='r', *l, **kw):
     if os.path.islink(path):
         raise SecurityError("The clipboard file can not be a symlink")
-    real_mode = real_mode.replace('w', 'a')
+    real_mode = mode.replace('w', 'a')
     with open(path, real_mode, *l, **kw) as fo:
         if os.fstat(fileno(fo)) != os.stat(path):
             raise SecurityError("Intrusion might have been done on %s" % path)