diff --git a/MANIFEST.in b/MANIFEST.in
index eb002f5..b8b7d82 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -3,3 +3,4 @@ include build.rs
 recursive-include krec/ *.rs *.pyi *.so *.py *.txt *.md *.toml py.typed
 recursive-include src/ *.rs
 recursive-include proto/ *.proto
+recursive-include .cargo/ *.toml