diff --git a/Cargo.toml b/Cargo.toml
index 1e1d7a40967b3..874f5cb96803a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,6 +26,7 @@ members = [
 ]
 exclude = [
   "src/tools/rls/test_data",
+  "build",
 ]
 
 # Curiously, LLVM 7.0 will segfault if compiled with opt-level=3