diff --git a/github-release.py b/github-release.py
index 00e0ed5..4c8298d 100755
--- a/github-release.py
+++ b/github-release.py
@@ -78,7 +78,7 @@ def ensure_safe_name(filename):
     elif filename == '..':
         return '. .'
     else:
-        return filename.replace('/', '\\')
+        return filename.replace('/', '\\').replace('\\', '_')
 
 
 def main():