diff --git a/scripts/check_modules.py b/scripts/check_modules.py
index 7d86c133..9a067e68 100644
--- a/scripts/check_modules.py
+++ b/scripts/check_modules.py
@@ -15,6 +15,7 @@ import traceback
 import shutil
 from pathlib import Path
 from pprint import pprint
+import re
 
 os_name = platform.system()
 
@@ -225,6 +226,7 @@ def install_pkg_if_necessary(pkg_name, required_version):
 
 def version_str_to_tuple(ver_str):
     ver_str = ver_str.split("+")[0]
+    ver_str = re.sub("[^0-9.]", "", ver_str)
     ver = ver_str.split(".")
     return tuple(map(int, ver))
 
diff --git a/ui/easydiffusion/device_manager.py b/ui/easydiffusion/device_manager.py
index dc705927..9b0f3f5e 100644
--- a/ui/easydiffusion/device_manager.py
+++ b/ui/easydiffusion/device_manager.py
@@ -243,7 +243,8 @@ def get_processor_name():
         if platform.system() == "Windows":
             return platform.processor()
         elif platform.system() == "Darwin":
-            os.environ["PATH"] = os.environ["PATH"] + os.pathsep + "/usr/sbin"
+            if "/usr/sbin" not in os.environ["PATH"].split(os.pathsep):
+                os.environ["PATH"] = os.environ["PATH"] + os.pathsep + "/usr/sbin"
             command = "sysctl -n machdep.cpu.brand_string"
             return subprocess.check_output(command, shell=True).decode().strip()
         elif platform.system() == "Linux":