diff --git a/direct/src/dist/FreezeTool.py b/direct/src/dist/FreezeTool.py
index e0071a2030..4bdb4e2a4d 100644
--- a/direct/src/dist/FreezeTool.py
+++ b/direct/src/dist/FreezeTool.py
@@ -1409,7 +1409,7 @@ class Freezer:
                 else:
                     filename += '.pyo'
                 if multifile.findSubfile(filename) < 0:
-                    code = compile('', moduleName, 'exec')
+                    code = compile('', moduleName, 'exec', optimize=2)
                     self.__addPyc(multifile, filename, code, compressionLevel)
 
             moduleDirs[str] = True
@@ -1489,7 +1489,7 @@ class Freezer:
                 source = open(sourceFilename.toOsSpecific(), 'r').read()
                 if source and source[-1] != '\n':
                     source = source + '\n'
-                code = compile(source, str(sourceFilename), 'exec')
+                code = compile(source, str(sourceFilename), 'exec', optimize=2)
 
         self.__addPyc(multifile, filename, code, compressionLevel)
 
@@ -1568,7 +1568,7 @@ class Freezer:
             # trouble importing it as a builtin module.  Synthesize a frozen
             # module that loads it as builtin.
             if '.' in moduleName and self.linkExtensionModules:
-                code = compile('import sys;del sys.modules["%s"];import imp;imp.init_builtin("%s")' % (moduleName, moduleName), moduleName, 'exec')
+                code = compile('import sys;del sys.modules["%s"];import imp;imp.init_builtin("%s")' % (moduleName, moduleName), moduleName, 'exec', optimize=2)
                 code = marshal.dumps(code)
                 mangledName = self.mangleName(moduleName)
                 moduleDefs.append(self.makeModuleDef(mangledName, code))
@@ -2472,7 +2472,7 @@ class PandaModuleFinder(modulefinder.ModuleFinder):
 
         if type is _PKG_NAMESPACE_DIRECTORY:
             m = self.add_module(fqname)
-            m.__code__ = compile('', '', 'exec')
+            m.__code__ = compile('', '', 'exec', optimize=2)
             m.__path__ = pathname
             return m
 
@@ -2484,7 +2484,7 @@ class PandaModuleFinder(modulefinder.ModuleFinder):
                 code = fp.read()
 
             code += b'\n' if isinstance(code, bytes) else '\n'
-            co = compile(code, pathname, 'exec')
+            co = compile(code, pathname, 'exec', optimize=2)
         elif type == imp.PY_COMPILED:
             if sys.version_info >= (3, 7):
                 try: