diff --git a/kitty/entry_points.py b/kitty/entry_points.py
index 438e5d6b5..8813e6d22 100644
--- a/kitty/entry_points.py
+++ b/kitty/entry_points.py
@@ -154,12 +154,11 @@ namespaced_entry_points['edit-config'] = edit_config_file
 namespaced_entry_points['shebang'] = shebang
 
 
-def setup_openssl_environment() -> None:
+def setup_openssl_environment(ext_dir: str) -> None:
     # Use our bundled CA certificates instead of the system ones, since
     # many systems come with no certificates in a useable form or have various
     # locations for the certificates.
     d = os.path.dirname
-    ext_dir: str = getattr(sys, 'kitty_run_data')['extensions_dir']
     if 'darwin' in sys.platform.lower():
         cert_file = os.path.join(d(d(d(ext_dir))), 'cacert.pem')
     else:
@@ -169,8 +168,10 @@ def setup_openssl_environment() -> None:
 
 
 def main() -> None:
-    if getattr(sys, 'frozen', False) and getattr(sys, 'kitty_extensions_dir', ''):
-        setup_openssl_environment()
+    if getattr(sys, 'frozen', False):
+        ext_dir: str = getattr(sys, 'kitty_run_data').get('extensions_dir')
+        if ext_dir:
+            setup_openssl_environment(ext_dir)
     first_arg = '' if len(sys.argv) < 2 else sys.argv[1]
     func = entry_points.get(first_arg)
     if func is None: