diff --git a/script/upload.py b/script/upload.py
index e93581e58996..dc44ce73129a 100755
--- a/script/upload.py
+++ b/script/upload.py
@@ -73,8 +73,10 @@ def get_atom_shell_build_version():
   if sys.platform == 'darwin':
     atom_shell = os.path.join(SOURCE_ROOT, 'out', 'Release', 'Atom.app',
                               'Contents', 'MacOS', 'Atom')
-  else:
+  elif sys.platform == 'win32':
     atom_shell = os.path.join(SOURCE_ROOT, 'out', 'Release', 'atom.exe')
+  else:
+    atom_shell = os.path.join(SOURCE_ROOT, 'out', 'Release', 'atom')
 
   return subprocess.check_output([atom_shell, '--version']).strip()