diff --git a/MANIFEST.in b/MANIFEST.in
index e040a9c34..3e64d2781 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,6 +1,8 @@
 # Include tests (but avoid including *.pyc, etc.)
 prune test
 recursive-include test/rsrc *
+recursive-exclude test/rsrc *.pyc
+recursive-exclude test/rsrc *.pyo
 include test/*.py
 
 # Include relevant text files.