diff --git a/MANIFEST.in b/MANIFEST.in
index d9e2a50..79aee40 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,4 +6,4 @@ include setup.cfg
 include VERSION
 include glm/py.typed
 recursive-include pyglm-stubs *
-recursive-include pyglm_lib *
+recursive-include PyGLM_lib *