diff --git a/pypxlib/pxlib_ctypes/libpx.so b/pypxlib/pxlib_ctypes/libpx.so
index cf0ab91..e6ce829 100755
Binary files a/pypxlib/pxlib_ctypes/libpx.so and b/pypxlib/pxlib_ctypes/libpx.so differ
diff --git a/pypxlib/pxlib_ctypes/libpx.dylib b/pypxlib/pxlib_ctypes/libpx_x64.dylib
similarity index 100%
rename from pypxlib/pxlib_ctypes/libpx.dylib
rename to pypxlib/pxlib_ctypes/libpx_x64.dylib
diff --git a/pypxlib/pxlib_ctypes/libpx_x64.so b/pypxlib/pxlib_ctypes/libpx_x64.so
new file mode 100644
index 0000000..cf0ab91
Binary files /dev/null and b/pypxlib/pxlib_ctypes/libpx_x64.so differ
diff --git a/pypxlib/pxlib_ctypes/py2.py b/pypxlib/pxlib_ctypes/py2.py
index 5132cbe..e633071 100644
--- a/pypxlib/pxlib_ctypes/py2.py
+++ b/pypxlib/pxlib_ctypes/py2.py
@@ -606,7 +606,15 @@ def add_library_search_dirs(other_dirs):
 
 _is_64_bit = sys.maxsize > 2 ** 32
 
-_px_lib = 'pxlib_x64' if sys.platform == 'win32' and _is_64_bit else 'px'
+# Select the correct library for the platform and architecture
+_px_lib = None
+if sys.platform == 'win32' and _is_64_bit:
+        _px_lib = 'pxlib_x64'
+elif _is_64_bit:
+        _px_lib = 'px_x64'      
+else:
+    _px_lib = 'px'
+
 _libs["px"] = load_library(_px_lib)
 
 # 1 libraries
diff --git a/pypxlib/pxlib_ctypes/py3.py b/pypxlib/pxlib_ctypes/py3.py
index 0005c68..9238718 100644
--- a/pypxlib/pxlib_ctypes/py3.py
+++ b/pypxlib/pxlib_ctypes/py3.py
@@ -605,7 +605,15 @@ def add_library_search_dirs(other_dirs):
 
 _is_64_bit = sys.maxsize > 2 ** 32
 
-_px_lib = 'pxlib_x64' if sys.platform == 'win32' and _is_64_bit else 'px'
+# Select the correct library for the platform and architecture
+_px_lib = None
+if sys.platform == 'win32' and _is_64_bit:
+        _px_lib = 'pxlib_x64'
+elif _is_64_bit:
+        _px_lib = 'px_x64'      
+else:
+    _px_lib = 'px'
+
 _libs["px"] = load_library(_px_lib)
 
 # 1 libraries