diff --git a/testsuite/Cargo.toml b/testsuite/Cargo.toml
index 1dfe66ae..e51a4807 100644
--- a/testsuite/Cargo.toml
+++ b/testsuite/Cargo.toml
@@ -13,7 +13,7 @@ publish = false
 
 [dependencies]
 anyhow = "1"
-clap = "3"
+clap = { version = "3", features = ["derive"] }
 time = { version = "0.3", features = ["formatting"] }
 oxigraph = { version = "0.3.0-beta.4", path="../lib" }
 text-diff = "0.4"