diff --git a/direct/src/dist/commands.py b/direct/src/dist/commands.py
index 4a628d292d..cd31b3073e 100644
--- a/direct/src/dist/commands.py
+++ b/direct/src/dist/commands.py
@@ -1030,12 +1030,9 @@ class build_apps(setuptools.Command):
             self.warn("Detected use of tkinter, but tkinter is not specified in requirements.txt!")
 
         # Copy extension modules
-        whl_modules = []
-        whl_modules_ext = ''
+        whl_modules = {}
         if use_wheels:
             # Get the module libs
-            whl_modules = []
-
             for i in p3dwhl.namelist():
                 if not i.startswith('deploy_libs/'):
                     continue
@@ -1050,8 +1047,7 @@ class build_apps(setuptools.Command):
 
                 base = os.path.basename(i)
                 module, _, ext = base.partition('.')
-                whl_modules.append(module)
-                whl_modules_ext = ext
+                whl_modules[module] = i
 
         # Make sure to copy any builtins that have shared objects in the
         # deploy libs, assuming they are not already in freezer_extras.
@@ -1103,7 +1099,7 @@ class build_apps(setuptools.Command):
             else:
                 # Builtin module, but might not be builtin in wheel libs, so double check
                 if module in whl_modules:
-                    source_path = os.path.join(p3dwhlfn, 'deploy_libs/{}.{}'.format(module, whl_modules_ext))#'{0}/deploy_libs/{1}.{2}'.format(p3dwhlfn, module, whl_modules_ext)
+                    source_path = os.path.join(p3dwhlfn, whl_modules[module])
                     basename = os.path.basename(source_path)
                     #XXX should we remove python version string here too?
                 else: