diff --git a/changelog.md b/changelog.md
index d5518172..6efe0a02 100644
--- a/changelog.md
+++ b/changelog.md
@@ -6,6 +6,7 @@
 > This version is not released yet and is under active development.
 
 - Fix conflicting detection heuristics for Linux distributions. Closes #72.
+- Fix fetching of macOS version for releases without build number (like `15.0`).
 
 ## [1.3.0 (2024-09-11)](https://github.com/kdeldycke/extra-platforms/compare/v1.2.1...v1.3.0)
 
diff --git a/extra_platforms/platforms.py b/extra_platforms/platforms.py
index c383bf32..6c29ed87 100644
--- a/extra_platforms/platforms.py
+++ b/extra_platforms/platforms.py
@@ -184,28 +184,34 @@ def info(self) -> dict[str, str | bool | None | dict[str, str | None]]:
             # Add extra macOS infos.
             if self.id == "macos":
                 release, _versioninfo, _machine = platform.mac_ver()
-                major, minor, build_number = release.split(".", 2)
+                parts = dict(
+                    zip(("major", "minor", "build_number"), release.split(".", 2))
+                )
                 mac_info = {
                     "version": release,
                     "version_parts": {
-                        "major": major,
-                        "minor": minor,
-                        "build_number": build_number,
+                        "major": parts.get("major"),
+                        "minor": parts.get("minor"),
+                        "build_number": parts.get("build_number"),
                     },
-                    "codename": _get_macos_codename(major, minor),
+                    "codename": _get_macos_codename(
+                        parts.get("major"), parts.get("minor")
+                    ),
                 }
                 info = _recursive_update(info, mac_info, strict=True)
 
             # Add extra Windows infos.
             elif self.id == "windows":
                 release, version, _csd, _ptype = platform.win32_ver()
-                major, minor, build_number = version.split(".", 2)
+                parts = dict(
+                    zip(("major", "minor", "build_number"), version.split(".", 2))
+                )
                 win_info = {
                     "version": release,
                     "version_parts": {
-                        "major": major,
-                        "minor": minor,
-                        "build_number": build_number,
+                        "major": parts.get("major"),
+                        "minor": parts.get("minor"),
+                        "build_number": parts.get("build_number"),
                     },
                     "codename": " ".join((release, platform.win32_edition())),
                 }