diff --git a/_shim_setup.py b/_shim_setup.py
index 80e6dde..42e1695 100644
--- a/_shim_setup.py
+++ b/_shim_setup.py
@@ -32,7 +32,8 @@ PLATFORM_MAP = {
 
 class InstallPrebuilt(build_py):
   def run(self):
-    data_dir = os.path.join(_HERE, MODULE, DATADIR)
+    module_dir = os.path.join(_HERE, MODULE)
+    data_dir = os.path.join(module_dir, DATADIR)
 
     if not os.path.exists(os.path.join(data_dir, "bin")):
       key = (platform.system(), platform.machine())
@@ -67,6 +68,24 @@ class InstallPrebuilt(build_py):
                   os.chmod(dest, 0o755)
               break
 
+        # Also extract compiled extension modules (.so)
+        ext_prefix = f"{MODULE}/"
+        ext_alt_prefix = f"{MODULE}-{VERSION}.data/purelib/{MODULE}/"
+        for info in zf.infolist():
+          if not info.filename.endswith('.so'):
+            continue
+          for p in (ext_prefix, ext_alt_prefix):
+            if info.filename.startswith(p):
+              rel = info.filename[len(p):]
+              if rel and '/' not in rel:
+                dest = os.path.join(module_dir, rel)
+                os.makedirs(os.path.dirname(dest), exist_ok=True)
+                with open(dest, "wb") as f:
+                  f.write(zf.read(info))
+                if info.external_attr >> 16 & 0o111:
+                  os.chmod(dest, 0o755)
+              break
+
     super().run()
 
 
diff --git a/raylib/pyproject.toml b/raylib/pyproject.toml
index 3006e5a..9845b66 100644
--- a/raylib/pyproject.toml
+++ b/raylib/pyproject.toml
@@ -1,10 +1,10 @@
 [build-system]
-requires = ["setuptools>=64", "wheel"]
+requires = ["setuptools>=64", "wheel", "cffi>=1.17.1"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "raylib"
-version = "5.5.0.2"
+version = "5.5.0.3"
 description = "raylib + pyray Python bindings (commaai fork)"
 requires-python = ">=3.8"
 dependencies = ["cffi>=1.17.1"]
@@ -13,4 +13,4 @@ dependencies = ["cffi>=1.17.1"]
 include = ["raylib*", "pyray*"]
 
 [tool.setuptools.package-data]
-raylib = ["install/**/*"]
+raylib = ["install/**/*", "_raylib_cffi*.so"]
diff --git a/raylib/setup.py b/raylib/setup.py
index 6c8c71d..532e52c 100644
--- a/raylib/setup.py
+++ b/raylib/setup.py
@@ -1,6 +1,8 @@
+import glob
 import os
 import platform
 import subprocess
+import sys
 
 from setuptools import setup
 from setuptools.command.build_py import build_py
@@ -12,7 +14,7 @@ except ImportError:
 
 
 class BuildRaylib(build_py):
-  """Run build.sh to compile the C library before collecting package data."""
+  """Run build.sh to compile the C library and CFFI extension before collecting package data."""
 
   def run(self):
     pkg_dir = os.path.dirname(os.path.abspath(__file__))
@@ -22,6 +24,13 @@ class BuildRaylib(build_py):
       build_script = os.path.join(pkg_dir, "build.sh")
       subprocess.check_call(["bash", build_script], cwd=pkg_dir)
 
+    # Build CFFI extension so it's included in the wheel
+    cffi_so = glob.glob(os.path.join(pkg_dir, "raylib", "_raylib_cffi*"))
+    if not cffi_so:
+      build_cffi = os.path.join(pkg_dir, "raylib", "build.py")
+      if os.path.isfile(build_cffi):
+        subprocess.check_call([sys.executable, build_cffi], cwd=pkg_dir)
+
     super().run()