diff --git a/find_system_fonts_filename/mac_fonts.py b/find_system_fonts_filename/mac_fonts.py
index f0a5335..b0a57ab 100644
--- a/find_system_fonts_filename/mac_fonts.py
+++ b/find_system_fonts_filename/mac_fonts.py
@@ -1,5 +1,5 @@
-from ctypes import c_bool, c_char_p, c_long, c_void_p, cdll, create_string_buffer, util
-from os import pathconf
+from ctypes import c_bool, c_char_p, c_int, c_long, c_uint32, c_void_p, cdll, create_string_buffer, util
+from enum import IntEnum
 from pathlib import Path
 from platform import mac_ver
 from typing import Set
@@ -7,6 +7,13 @@
 from .system_fonts import SystemFonts
 
 
+class CFURLPathStyle(IntEnum):
+    # https://developer.apple.com/documentation/corefoundation/cfurlpathstyle?language=objc
+    kCFURLPOSIXPathStyle = 0
+    kCFURLHFSPathStyle = 1
+    kCFURLWindowsPathStyle = 2
+
+
 class MacFonts(SystemFonts):
     _core_foundation = None
     _core_text = None
@@ -14,6 +21,7 @@ class MacFonts(SystemFonts):
     # But, the API is "semi-broken" since it says .dfont are TrueType. This is kinda true, but it is not a behaviour that we want.
     # So, we only check the file extension and see if it is valid.
     VALID_FONT_FORMATS = ["ttf", "otf", "ttc"]
+    kCFStringEncodingUTF8 = 0x08000100 # https://developer.apple.com/documentation/corefoundation/cfstringbuiltinencodings/kcfstringencodingutf8?language=objc
 
     def get_system_fonts_filename() -> Set[str]:
         if MacVersionHelpers.is_mac_version_or_greater(10, 6):
@@ -25,21 +33,13 @@ def get_system_fonts_filename() -> Set[str]:
             font_urls = MacFonts._core_text.CTFontManagerCopyAvailableFontURLs()
             font_count = MacFonts._core_foundation.CFArrayGetCount(font_urls)
 
-            max_length = pathconf("/", "PC_PATH_MAX")
-
             for i in range(font_count):
                 url = MacFonts._core_foundation.CFArrayGetValueAtIndex(font_urls, i)
 
-                file_name_ptr = create_string_buffer(max_length)
-                no_error = MacFonts._core_foundation.CFURLGetFileSystemRepresentation(url, True, file_name_ptr, max_length)
-
-                if no_error:
-                    filename = file_name_ptr.value.decode()
+                filename = MacFonts._cfstring_to_string(MacFonts._core_text.CFURLCopyFileSystemPath(url, CFURLPathStyle.kCFURLPOSIXPathStyle))
 
-                    if Path(filename).suffix.lstrip(".").strip().lower() in MacFonts.VALID_FONT_FORMATS:
-                        fonts_filename.add(filename)
-                else:
-                    raise Exception("An unexpected error has occurred while decoded the CFURL.")
+                if Path(filename).suffix.lstrip(".").strip().lower() in MacFonts.VALID_FONT_FORMATS:
+                    fonts_filename.add(filename)
 
             MacFonts._core_foundation.CFRelease(font_urls)
         else:
@@ -47,6 +47,23 @@ def get_system_fonts_filename() -> Set[str]:
 
         return fonts_filename
 
+    @staticmethod
+    def _cfstring_to_string(cfstring: c_void_p) -> str:
+        """
+        Parameters:
+            cfstring (c_void_p): An CFString instance.
+        Returns:
+            The decoded CFString.
+        """
+        length = MacFonts._core_foundation.CFStringGetLength(cfstring)
+        size = MacFonts._core_foundation.CFStringGetMaximumSizeForEncoding(length, MacFonts.kCFStringEncodingUTF8)
+        buffer = create_string_buffer(size + 1)
+        result = MacFonts._core_foundation.CFStringGetCString(cfstring, buffer, len(buffer), MacFonts.kCFStringEncodingUTF8)
+        if result:
+            return str(buffer.value, 'utf-8')
+        else:
+            raise Exception("An unexpected error has occurred while decoded the CFString.")
+
     @staticmethod
     def _load_core_library():
         core_foundation_library_name = util.find_library("CoreFoundation")
@@ -64,6 +81,8 @@ def _load_core_library():
         MacFonts._core_text = cdll.LoadLibrary(core_text_library_name)
 
         CFIndex = c_long
+        CFStringEncoding = c_uint32
+        CFURLPathStyle = c_int
 
         # https://developer.apple.com/documentation/corefoundation/1521153-cfrelease
         MacFonts._core_foundation.CFRelease.restype = c_void_p
@@ -77,14 +96,25 @@ def _load_core_library():
         MacFonts._core_foundation.CFArrayGetValueAtIndex.restype = c_void_p
         MacFonts._core_foundation.CFArrayGetValueAtIndex.argtypes = [c_void_p, CFIndex]
 
-        # https://developer.apple.com/documentation/corefoundation/1541515-cfurlgetfilesystemrepresentation?language=objc
-        MacFonts._core_foundation.CFURLGetFileSystemRepresentation.restype = c_bool
-        MacFonts._core_foundation.CFURLGetFileSystemRepresentation.argtypes = [c_void_p, c_bool, c_char_p, CFIndex]
+        # https://developer.apple.com/documentation/corefoundation/1542853-cfstringgetlength?language=objc
+        MacFonts._core_foundation.CFStringGetLength.restype = CFIndex
+        MacFonts._core_foundation.CFStringGetLength.argtypes = [c_void_p]
+
+        # https://developer.apple.com/documentation/corefoundation/1542143-cfstringgetmaximumsizeforencodin?language=objc
+        MacFonts._core_foundation.CFStringGetMaximumSizeForEncoding.restype = CFIndex
+        MacFonts._core_foundation.CFStringGetMaximumSizeForEncoding.argtypes = [c_void_p, CFStringEncoding]
+
+        # https://developer.apple.com/documentation/corefoundation/1542721-cfstringgetcstring?language=objc
+        MacFonts._core_foundation.CFStringGetCString.restype = c_bool
+        MacFonts._core_foundation.CFStringGetCString.argtypes = [c_void_p, c_char_p, CFIndex, CFStringEncoding]
 
         # https://developer.apple.com/documentation/coretext/1499478-ctfontmanagercopyavailablefontur?language=objc
         MacFonts._core_text.CTFontManagerCopyAvailableFontURLs.restype = c_void_p
         MacFonts._core_text.CTFontManagerCopyAvailableFontURLs.argtypes = []
 
+        # https://developer.apple.com/documentation/corefoundation/1541581-cfurlcopyfilesystempath?language=objc
+        MacFonts._core_text.CFURLCopyFileSystemPath.restype = c_void_p
+        MacFonts._core_text.CFURLCopyFileSystemPath.argtypes = [c_void_p, CFURLPathStyle]
 
 class MacVersionHelpers:
     @staticmethod