diff --git a/src/groq/_base_client.py b/src/groq/_base_client.py
index 9207153..2311063 100644
--- a/src/groq/_base_client.py
+++ b/src/groq/_base_client.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import sys
 import json
 import time
 import uuid
@@ -1982,7 +1983,6 @@ def get_python_version() -> str:
 
 def get_architecture() -> Arch:
     try:
-        python_bitness, _ = platform.architecture()
         machine = platform.machine().lower()
     except Exception:
         return "unknown"
@@ -1998,7 +1998,7 @@ def get_architecture() -> Arch:
         return "x64"
 
     # TODO: untested
-    if python_bitness == "32bit":
+    if sys.maxsize <= 2**32:
         return "x32"
 
     if machine: