diff --git a/Cargo.toml b/Cargo.toml
index ea32a8edd1ff..b996e55c7795 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,9 @@ build = "build.rs"
 edition = "2018"
 publish = false
 
+[workspace]
+exclude = ["clippy_dev", "mini-macro"]
+
 [[bin]]
 name = "cargo-clippy"
 test = false