diff --git a/MANIFEST.in b/MANIFEST.in
index 268de42..1f4c27b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,6 +4,7 @@
 exclude Makefile requirements.txt .pylintrc  reclass.py
 # Exclude testing infra
 exclude run_tests.py
+prune reclass/tests
 prune reclass/datatypes/tests
 prune reclass/storage/tests
 prune reclass/utils/tests