diff --git a/contrib/osx/pyinstaller.spec b/contrib/osx/pyinstaller.spec
index c3472883e..5591e0399 100644
--- a/contrib/osx/pyinstaller.spec
+++ b/contrib/osx/pyinstaller.spec
@@ -1,6 +1,6 @@
 # -*- mode: python -*-
 
-from PyInstaller.utils.hooks import collect_data_files, collect_submodules, collect_dynamic_libs
+from PyInstaller.utils.hooks import collect_data_files, collect_submodules, collect_dynamic_libs, copy_metadata
 
 import sys, os