diff --git a/Mac/Resources/pythonpath.r b/Mac/Resources/pythonpath.r
index 288c5b4..6453c3b 100644
--- a/Mac/Resources/pythonpath.r
+++ b/Mac/Resources/pythonpath.r
@@ -79,6 +79,7 @@
 		"$(PYTHON):Mac:Lib:lib-toolbox",
 		"$(PYTHON):Mac:Lib:lib-scripting",
 		"$(PYTHON):Extensions:img:Lib"
+		"$(PYTHON):Extensions:Numerical:Lib"
 	}
 };