diff --git a/ethabi/Cargo.toml b/ethabi/Cargo.toml
index 8a14bf433..cfdd76a5a 100644
--- a/ethabi/Cargo.toml
+++ b/ethabi/Cargo.toml
@@ -14,7 +14,7 @@ edition = "2018"
 
 [dependencies]
 anyhow = { version = "1", optional = true }
-hex = { version = "0.4", default-features = false, features = ["alloc"]}
+hex = { version = "0.4", default-features = false, features = ["alloc"] }
 serde = { version = "1.0", optional =  true, features = ["derive"] }
 serde_json = { version = "1.0", optional = true }
 sha3 = { version = "0.9", default-features = false }