diff --git a/cppimport/build_module.py b/cppimport/build_module.py
index bec390e..f6c53b6 100644
--- a/cppimport/build_module.py
+++ b/cppimport/build_module.py
@@ -127,7 +127,7 @@ def copy_extensions_to_source(self):
             dest_filename = os.path.join(ext.libdest, os.path.basename(filename))
 
             distutils.file_util.copy_file(
-                src_filename, dest_filename, verbose=self.verbose, dry_run=self.dry_run
+                src_filename, dest_filename, verbose=self.verbose
             )