diff --git a/comicapi/utils.py b/comicapi/utils.py
index f50053c..5c5fe96 100644
--- a/comicapi/utils.py
+++ b/comicapi/utils.py
@@ -226,7 +226,7 @@ def get_recursive_filelist(pathlist: list[str]) -> list[str]:
 
 
 def add_to_path(dirname: str) -> None:
-    if dirname:
+    if dirname and os.path.isdir(dirname):
         dirname = os.path.abspath(dirname)
         paths = [os.path.normpath(x) for x in split(os.environ["PATH"], os.pathsep)]
 
diff --git a/comictaggerlib/ctsettings/commandline.py b/comictaggerlib/ctsettings/commandline.py
index f958544..2800f91 100644
--- a/comictaggerlib/ctsettings/commandline.py
+++ b/comictaggerlib/ctsettings/commandline.py
@@ -19,6 +19,8 @@ import argparse
 import logging
 import os
 import platform
+import shlex
+import subprocess
 
 import settngs
 
@@ -308,12 +310,18 @@ def validate_commandline_settings(config: settngs.Config[ct_ns], parser: settngs
     if not utils.which("rar"):
         if platform.system() == "Windows":
             # look in some likely places for Windows machines
-            if os.path.exists(r"C:\Program Files\WinRAR\Rar.exe"):
-                utils.add_to_path(r"C:\Program Files\WinRAR")
-            elif os.path.exists(r"C:\Program Files (x86)\WinRAR\Rar.exe"):
-                utils.add_to_path(r"C:\Program Files (x86)\WinRAR")
+            utils.add_to_path(r"C:\Program Files\WinRAR")
+            utils.add_to_path(r"C:\Program Files (x86)\WinRAR")
         else:
-            if os.path.exists("/opt/homebrew/bin"):
-                utils.add_to_path("/opt/homebrew/bin")
+            if platform.system() == "Darwin":
+                result = subprocess.run(("/usr/libexec/path_helper", "-s"), capture_output=True)
+                for path in reversed(
+                    shlex.split(result.stdout.decode("utf-8", errors="ignore"))[0]
+                    .partition("=")[2]
+                    .rstrip(";")
+                    .split(os.pathsep)
+                ):
+                    utils.add_to_path(path)
+            utils.add_to_path("/opt/homebrew/bin")
 
     return config
diff --git a/comictaggerlib/settingswindow.py b/comictaggerlib/settingswindow.py
index 6bb5219..a5d5df7 100644
--- a/comictaggerlib/settingswindow.py
+++ b/comictaggerlib/settingswindow.py
@@ -60,7 +60,7 @@ macRarHelp = """
                 you will need the rar tool.  The easiest way to get this is
                 to install <span style=" text-decoration: underline; color:#0000ff;">
                 <a href="https://brew.sh/">homebrew</a></span>.
-                </p>Once homebrew is installed, run: <b>brew install caskroom/cask/rar</b></body></html>
+                </p>Once homebrew is installed, run: <b>brew install rar</b></body></html>
                 """